12 Smart Keto Slow Cooker Soup Recipes Without Extra Carbs or Complicated Prep

Keto meals can feel repetitive when you are short on time. These slow cooker soup recipes keep things simple with minimal prep and no added carbs. Each one uses everyday ingredients that fit a low carb lifestyle. You can set them up in the morning and have dinner ready without extra effort.

Helpful Tips Before You Start

A few quick checks will keep these soups keto friendly and easy to assemble.

Check Broth Labels

Many store bought broths contain added sugars. Choose versions with 1 gram of carbs or less per cup.

Use Frozen Vegetables

Pre chopped frozen cauliflower, broccoli, and spinach cut prep time in half. They cook evenly and add no extra carbs.

Skip Any Thickener

These recipes thicken on their own from the vegetables. Flour, cornstarch, or arrowroot will raise the carb count.

Measure Spices First

Combine all dried herbs and seasonings in a small bowl before you start. This keeps the morning steps to dumping and stirring only.

Taste at the End

Slow cooking can mute flavors. Add salt, pepper, or a splash of vinegar after cooking rather than at the beginning.

Creamy Broccoli Cheddar Soup

This slow cooker soup turns simple broccoli and sharp cheddar into a thick, comforting bowl that stays fully keto. It skips any thickeners or carb-heavy extras while still delivering the creamy texture you want from a classic broccoli cheddar soup.

It works especially well on busy days when you want something warm and filling without standing over the stove. The flavors stay mild and cheesy with a subtle savory note from the broth.

Creamy Broccoli Cheddar Soup

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Course Soup

Cuisine American

Servings 4 people

Equipment

• Slow Cooker
• Immersion Blender

Ingredients

  

• 4 cups broccoli florets
• 1 small onion, diced
• 3 cups chicken broth
• 1 cup heavy whipping cream
• 8 ounces cream cheese, cubed
• 2 cups shredded cheddar cheese
• 1 teaspoon garlic powder
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper

Instructions

 

• Place the broccoli florets, diced onion, chicken broth, garlic powder, salt, and black pepper into the slow cooker.
• Cover and cook on low for 5 hours until the broccoli is very soft.
• Stir in the heavy whipping cream and cream cheese cubes until the cream cheese melts into the broth.
• Use an immersion blender to puree the soup until smooth, or mash with a potato masher for a slightly chunkier texture.
• Add the shredded cheddar cheese a handful at a time, stirring after each addition until fully melted and the soup thickens.

Notes

Stir the cheddar in gradually while the soup is still hot to keep it smooth and prevent clumping. Leftovers reheat well on the stovetop over low heat with a splash of broth to loosen the texture if it thickens too much in the fridge.

Course: Soup
Cuisine: American
Equipment: Slow Cooker, Immersion Blender

Spicy Sausage and Cabbage Soup

This soup pairs spicy sausage with tender cabbage in a simple broth that stays light on carbs. It fits busy days when you want a filling meal that cooks mostly on its own in the slow cooker.

The result is a hearty bowl with a gentle heat and satisfying texture from the softened cabbage. It keeps the focus on everyday ingredients that need little hands-on time.

Spicy Sausage and Cabbage Soup

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Course Soup

Cuisine American

Servings 4 people

Equipment

• Slow Cooker
• Large Skillet

Ingredients

  

• 1 lb spicy Italian sausage, casings removed
• 6 cups shredded green cabbage
• 1 medium onion, diced
• 3 cloves garlic, minced
• 4 cups beef broth
• 1 tsp red pepper flakes
• 1 tsp smoked paprika
• 1/2 tsp salt
• 1/4 tsp black pepper

Instructions

 

• Heat a large skillet over medium heat and add the sausage. Cook until browned and crumbled, breaking it up with a spoon as it cooks.
• Transfer the browned sausage to the slow cooker. Add the diced onion, minced garlic, shredded cabbage, beef broth, red pepper flakes, smoked paprika, salt, and black pepper.
• Stir the ingredients to combine evenly. Cover the slow cooker and cook on low for 6 hours.
• Stir once more before serving to distribute the flavors.

Notes

Brown the sausage thoroughly in the skillet first to build richer flavor in the finished broth. Leftovers reheat well on the stovetop and often taste even better after the spices have settled overnight. Skip extra toppings to keep the carb count low.

Course: Soup
Cuisine: American
Equipment: Slow Cooker, Large Skillet

Thai Coconut Chicken Curry Soup

This soup brings creamy coconut and bold curry flavors together in a simple slow cooker meal. It works well for busy weeknights when you want something satisfying without much effort.

The result is a rich broth with tender chicken pieces and fresh spinach. Lime and fish sauce add a bright, savory finish that keeps each bowl interesting.

Thai Coconut Chicken Curry Soup

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Course Soup

Cuisine Thai

Servings 4 people

Equipment

• Slow Cooker
• Knife
• Cutting Board

Ingredients

  

• 1.5 pounds boneless skinless chicken thighs, cut into bite-size pieces
• 1 can (13.5 oz) full-fat coconut milk
• 3 tablespoons Thai red curry paste
• 4 cups chicken broth
• 1 small onion, diced
• 3 garlic cloves, minced
• 1 tablespoon fresh ginger, grated
• 1 red bell pepper, thinly sliced
• 2 tablespoons fish sauce
• Juice of 1 lime
• 2 cups fresh spinach
• Fresh cilantro, chopped, for garnish
• Salt and black pepper to taste

Instructions

 

• Add the chicken thighs, coconut milk, red curry paste, chicken broth, onion, garlic, ginger, red bell pepper, and fish sauce to the slow cooker. Stir to combine the curry paste evenly with the liquids.
• Cover and cook on low for 6 hours or high for 3 hours until the chicken is tender and cooked through.
• Stir in the lime juice and fresh spinach. Let the spinach wilt for 5 minutes in the warm soup.
• Taste and add salt and black pepper if needed. Ladle into bowls and top with chopped cilantro before serving.

Notes

If the curry paste brand you use is quite spicy, start with 2 tablespoons and add more at the end after tasting. Leftovers keep well in the fridge for up to 3 days and reheat gently on the stove without separating. Skip the spinach if you prefer a thinner broth.

Course: Soup
Cuisine: Thai
Equipment: Slow Cooker, Knife, Cutting Board

Beef and Mushroom Barley-Free Stew

This beef and mushroom stew brings together tender chunks of meat and earthy mushrooms in a savory broth that feels hearty without any grains. It works well on busy weeknights when you want something filling that cooks mostly on its own. The finished dish has a rich, beefy flavor with soft vegetables and a thick texture from the slow-simmered ingredients.

Beef and Mushroom Barley-Free Stew

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Course Soup

Cuisine American

Servings 4 people

Equipment

• Slow Cooker
• Knife
• Cutting Board

Ingredients

  

• 1.5 pounds beef chuck roast, cut into 1-inch cubes
• 8 ounces cremini mushrooms, quartered
• 1 medium onion, diced
• 2 celery stalks, sliced
• 4 cups beef bone broth
• 2 tablespoons tomato paste
• 3 garlic cloves, minced
• 1 teaspoon dried thyme
• 1 teaspoon dried rosemary
• 2 bay leaves
• 1 teaspoon salt
• 1/2 teaspoon black pepper

Instructions

 

• Add the beef cubes, quartered mushrooms, diced onion, and sliced celery to the slow cooker.
• In a small bowl, whisk together the beef bone broth, tomato paste, minced garlic, dried thyme, dried rosemary, salt, and black pepper until smooth.
• Pour the broth mixture over the meat and vegetables in the slow cooker, then add the bay leaves.
• Stir gently to combine everything, cover, and cook on low for 8 hours.
• Remove the bay leaves, stir the stew once more, and serve hot.

Notes

The mushrooms release enough liquid during cooking to keep the stew from drying out, so avoid adding extra broth unless you prefer a thinner soup. If the beef is very lean, a quick sear in a skillet before adding it can deepen the flavor without extra steps. Leftovers thicken further in the fridge and reheat well on the stovetop with a splash of water to loosen them.

Course: Soup
Cuisine: American
Equipment: Slow Cooker, Knife, Cutting Board

Cheesy Cauliflower Bacon Chowder

This cheesy cauliflower bacon chowder combines tender cauliflower with smoky bacon in a creamy broth. It works well for weeknight dinners when you want a filling keto soup that requires little hands-on time.

The slow cooker creates a rich texture with melted cheese throughout and bits of bacon in every bite. It stays low in carbs while delivering classic chowder comfort.

Cheesy Cauliflower Bacon Chowder

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Course Soup

Cuisine American

Servings 4 people

Equipment

• Slow Cooker

Ingredients

  

• 4 cups cauliflower florets
• 8 slices bacon, diced
• 1 small onion, chopped
• 2 cloves garlic, minced
• 3 cups chicken broth
• 8 ounces cream cheese, cubed
• 1 cup heavy cream
• 2 cups shredded cheddar cheese
• Salt and pepper to taste

Instructions

 

• Add the cauliflower florets, diced bacon, chopped onion, minced garlic, and chicken broth to the slow cooker.
• Cover and cook on low for 6 hours or on high for 3 hours until the cauliflower is soft.
• Stir in the cream cheese, heavy cream, and cheddar cheese until everything melts and the soup turns smooth.
• Taste and add salt and pepper as needed before serving.

Notes

Stir the soup well after adding the cheeses to help them melt evenly. If you prefer a thicker texture, mash some of the cauliflower with a spoon before stirring in the dairy. Leftovers reheat gently on the stovetop with a splash of broth to loosen the consistency.

Course: Soup
Cuisine: American
Equipment: Slow Cooker

Lemon Garlic Chicken Spinach Soup

This lemon garlic chicken spinach soup brings bright, savory flavors to your keto meal plan with almost no hands-on work. The slow cooker handles everything, creating tender chicken in a light broth that feels fresh rather than heavy.

It suits weeknight dinners or weekend meal prep when you want something warm and satisfying without extra carbs. The finished soup has a clean lemon-garlic taste balanced by wilted spinach and shredded chicken.

Lemon Garlic Chicken Spinach Soup

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Course Soup

Cuisine Mediterranean

Servings 4 people

Equipment

• Slow Cooker

Ingredients

  

• 1.5 pounds boneless, skinless chicken breasts
• 4 cups chicken broth
• 4 garlic cloves, minced
• 2 lemons, zested and juiced
• 5 ounces fresh spinach
• 1 teaspoon dried oregano
• 1 teaspoon salt
• 1/2 teaspoon black pepper

Instructions

 

• Place the chicken breasts in the slow cooker. Add the chicken broth, minced garlic, lemon zest, lemon juice, oregano, salt, and black pepper.
• Cover and cook on low for 6 hours until the chicken is tender and easy to shred.
• Remove the chicken from the slow cooker and shred it with two forks. Return the shredded chicken to the broth.
• Add the fresh spinach to the slow cooker. Stir gently, cover, and cook for 10 more minutes until the spinach wilts.

Notes

Stir the spinach in only at the end so it stays bright green instead of turning dull. Taste the broth after shredding the chicken and add an extra pinch of salt if the lemon flavor needs balancing. Leftovers reheat well on the stovetop over medium heat with a splash of broth to loosen the texture.

Course: Soup
Cuisine: Mediterranean
Equipment: Slow Cooker

Mexican Chicken Avocado Soup

This soup brings tender shredded chicken and warm Mexican spices together in a light broth that stays low in carbs. It works well on busy evenings when you want a filling meal with almost no hands-on time. Creamy avocado added at the end gives a cool contrast to the spiced broth.

The flavors stay bright from cumin, chili powder, and a touch of lime, while the slow cooker handles all the cooking.

Mexican Chicken Avocado Soup

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Course Soup

Cuisine Mexican

Servings 4 people

Equipment

• Slow Cooker
• Knife
• Cutting Board

Ingredients

  

• 1.5 lbs boneless skinless chicken breasts
• 1 medium onion, diced
• 3 cloves garlic, minced
• 1 (14 oz) can diced tomatoes with green chilies
• 4 cups chicken broth
• 2 tsp chili powder
• 1 tsp ground cumin
• 1 tsp dried oregano
• 1/2 tsp salt
• 1/4 tsp black pepper
• 2 ripe avocados, diced
• 1/4 cup fresh cilantro, chopped
• 1 lime, cut into wedges

Instructions

 

• Place the chicken breasts in the bottom of the slow cooker. Add the diced onion, minced garlic, and the can of diced tomatoes with green chilies.
• Pour the chicken broth over the ingredients. Sprinkle in the chili powder, cumin, oregano, salt, and black pepper.
• Cover and cook on low for 6 to 7 hours until the chicken is tender and easy to shred.
• Remove the chicken from the slow cooker and shred it with two forks. Return the shredded chicken to the broth and stir to combine.
• Ladle the soup into bowls. Top each serving with diced avocado and chopped cilantro. Serve with lime wedges on the side.

Notes

Add the avocado right before serving so it stays firm and creamy instead of softening in the hot broth. If you prefer a milder flavor, use plain diced tomatoes and reduce the chili powder by half. Leftovers reheat well on the stove over medium heat, but store the avocado separately and add it fresh each time.

Course: Soup
Cuisine: Mexican
Equipment: Slow Cooker, Knife, Cutting Board

Italian Meatball and Kale Soup

This soup brings together tender Italian-style meatballs and sturdy kale in a simple broth that feels both filling and light. It works well for weeknight dinners or make-ahead lunches when you want something warm without spending much time in the kitchen.

The flavor is savory with classic Italian herbs and garlic, while the kale softens just enough to add texture without turning mushy. Everything cooks together in the slow cooker, so the meatballs stay moist and the broth stays clear of extra carbs.

Italian Meatball and Kale Soup

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Course Soup

Cuisine Italian

Servings 4 people

Equipment

• Slow Cooker
• Large Skillet
• Mixing Bowl

Ingredients

  

• 1 pound ground beef
• 1 large egg
• 1/4 cup grated Parmesan cheese
• 1 tablespoon Italian seasoning
• 1 teaspoon garlic powder
• 1/2 teaspoon salt
• 4 cups beef broth
• 5 cups chopped kale
• 1/2 teaspoon black pepper

Instructions

 

• Combine the ground beef, egg, Parmesan cheese, Italian seasoning, garlic powder, and salt in a mixing bowl. Mix until evenly combined.
• Form the mixture into 16 small meatballs, about 1 inch across.
• Heat a large skillet over medium heat. Brown the meatballs on all sides, working in batches if needed. They do not need to cook through.
• Place the browned meatballs in the slow cooker. Add the beef broth, kale, and black pepper.
• Cover and cook on low for 6 hours. Stir once halfway through if possible.
• Taste and adjust salt before serving.

Notes

The kale softens nicely during the long cook but still holds some bite. If you prefer it brighter, stir it in during the last hour. Leftovers keep well in the fridge for three days and reheat gently on the stove without the meatballs falling apart.
Course: Soup
Cuisine: Italian
Equipment: Slow Cooker, Large Skillet, Mixing Bowl

Buffalo Chicken Soup

This Buffalo Chicken Soup delivers the classic spicy and tangy flavors of buffalo wings in a creamy, low-carb broth. It works well for weeknight dinners or casual gatherings when you want something hearty that still fits keto guidelines. The slow cooker handles the work, leaving tender chicken and a smooth texture without extra steps.

The recipe uses simple ingredients that go straight into the pot. It avoids thickeners or high-carb add-ins while keeping the focus on bold seasoning and easy shredding at the end.

Buffalo Chicken Soup

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Course Soup

Cuisine American

Servings 4 people

Equipment

• Slow Cooker
• Measuring Cups
• Knife

Ingredients

  

• 1 pound boneless, skinless chicken breasts
• 4 cups chicken broth
• 1/2 cup buffalo sauce
• 4 ounces cream cheese, cubed
• 2 celery ribs, diced
• 1 teaspoon garlic powder
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 cup crumbled blue cheese, for topping
• 2 green onions, sliced, for topping

Instructions

 

• Add the chicken breasts to the slow cooker.
• Pour in the chicken broth and buffalo sauce.
• Add the cream cheese cubes, diced celery, garlic powder, salt, and black pepper.
• Cover and cook on low for 6 hours.
• Remove the chicken breasts, shred them with two forks, and return the meat to the slow cooker. Stir until everything is combined.
• Ladle the soup into bowls and finish with crumbled blue cheese and sliced green onions.

Notes

If the broth thickens too much during cooking, stir in an extra half cup of warm broth right before serving. Leftovers reheat well on the stovetop over medium-low heat with a splash of broth to loosen the texture. For milder heat, reduce the buffalo sauce by two tablespoons and taste before adding more at the end.

Course: Soup
Cuisine: American
Equipment: Slow Cooker, Measuring Cups, Knife

Ginger Pork and Cabbage Soup

This ginger pork and cabbage soup combines tender cubes of pork with shredded cabbage in a light, savory broth. Fresh ginger gives it a clean, warming taste that feels satisfying without being heavy. It works well for weeknight dinners when you want a hands-off meal that still tastes fresh.

The slow cooker handles the pork until it softens, while the cabbage keeps some bite when added later. Coconut aminos and sesame oil round out the flavor without adding carbs or extra steps.

Ginger Pork and Cabbage Soup

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Course Soup

Cuisine Asian

Servings 4 people

Equipment

• Slow Cooker
• Knife
• Cutting Board

Ingredients

  

• 1 pound boneless pork shoulder, cut into 1-inch cubes
• 4 cups shredded green cabbage
• 2 tablespoons minced fresh ginger
• 3 garlic cloves, minced
• 6 cups chicken broth
• 2 tablespoons coconut aminos
• 1 tablespoon sesame oil
• 2 green onions, sliced
• Salt and black pepper to taste

Instructions

 

• Add the pork cubes, minced ginger, and garlic to the slow cooker.
• Pour in the chicken broth and coconut aminos, then stir once to mix.
• Cover and cook on low for 6 hours.
• Stir in the shredded cabbage and sesame oil during the final hour of cooking.
• Taste and season with salt and black pepper as needed.
• Ladle into bowls and top with the sliced green onions before serving.

Notes

Add the cabbage only in the last hour so it softens slightly but does not become limp. Ground pork can replace the cubed shoulder if you want to skip the cutting step. Leftovers reheat well on the stove over medium heat with a splash of broth to loosen the texture.

Course: Soup
Cuisine: Asian
Equipment: Slow Cooker, Knife, Cutting Board

Creamy Tuscan Sausage Soup

This slow cooker soup brings together savory Italian sausage, garlic, and spinach in a rich cream base. It works well for weeknight dinners when you want something filling without extra carbs or multiple pots to clean. The finished soup has a thick, velvety texture and classic Tuscan flavors that feel comforting yet light enough for keto eating.

Creamy Tuscan Sausage Soup

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Course Soup

Cuisine Italian

Servings 4 people

Equipment

• Slow Cooker
• Large Skillet

Ingredients

  

• 1 pound ground Italian sausage
• 1 small onion, diced
• 3 garlic cloves, minced
• 4 cups chicken broth
• 1/2 cup sun-dried tomatoes, chopped
• 1 teaspoon Italian seasoning
• 1 cup heavy whipping cream
• 2 cups fresh spinach
• Salt and black pepper to taste
• Grated Parmesan cheese for serving

Instructions

 

• Brown the sausage in a skillet over medium heat, breaking it into small pieces as it cooks. Add the diced onion and minced garlic during the last few minutes until the onion softens.
• Transfer the sausage mixture to the slow cooker. Pour in the chicken broth, then add the chopped sun-dried tomatoes and Italian seasoning. Season with salt and black pepper.
• Cover and cook on low for 6 hours or on high for 3 hours.
• Stir in the heavy whipping cream and fresh spinach. Cover and cook for 10 more minutes until the spinach wilts and the soup is heated through.
• Ladle into bowls and top each serving with grated Parmesan cheese.

Notes

Stir the spinach in only at the end so it stays bright green instead of turning olive colored. If the soup thickens too much after chilling, add a splash of broth when reheating. Use oil-packed sun-dried tomatoes for extra flavor, and drain them well before chopping so they do not water down the cream base.

Course: Soup
Cuisine: Italian
Equipment: Slow Cooker, Large Skillet

French Onion Soup with Gruyère

This French onion soup builds deep savory flavor from onions cooked low and slow in beef broth. A generous layer of Gruyère melts over each bowl to add a rich, creamy finish that feels comforting without any extra carbs.

It works well on busy days when you want a hands-off meal that still tastes like it took real effort. The result is a smooth broth with tender onions and a satisfying cheese topping that makes it easy to serve as a full lunch or light dinner.

French Onion Soup with Gruyère

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Course Soup

Cuisine French

Servings 4 people

Equipment

• Slow Cooker
• Knife
• Cutting Board

Ingredients

  

• 4 large yellow onions, thinly sliced
• 4 tablespoons butter
• 6 cups beef broth
• 3 cloves garlic, minced
• 1 teaspoon dried thyme
• 2 bay leaves
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1 1/2 cups shredded Gruyère cheese

Instructions

 

• Add the sliced onions and butter to the slow cooker and stir until the onions are coated.
• Pour in the beef broth, then add the garlic, thyme, bay leaves, salt, and pepper.
• Stir everything together, cover the slow cooker, and cook on low for 8 hours until the onions are very soft.
• Remove and discard the bay leaves before serving.
• Ladle the soup into four bowls and divide the shredded Gruyère evenly across the top of each bowl.

Notes

For a deeper onion flavor, slice the onions as evenly as possible so they soften at the same rate. The cheese melts best when added right after cooking while the soup is still hot. Leftovers store well in the fridge for three days and reheat gently on the stovetop without losing texture.

Course: Soup
Cuisine: French
Equipment: Slow Cooker, Knife, Cutting Board