Place the beef cubes, onion, garlic, carrots, potatoes, and bell peppers into the slow cooker.
Sprinkle the smoked paprika, salt, and black pepper over the ingredients. Pour the beef broth on top and stir once to distribute the spices.
Cover and cook on low for 8 hours until the beef is fork-tender.
Stir in the frozen peas during the final 30 minutes of cooking so they warm through without becoming mushy.
Taste and adjust salt or pepper if needed before serving.