Place the ground beef, beef broth, marinara sauce, diced tomatoes, water, Italian seasoning, garlic powder, salt, and black pepper into the crockpot.
Break the lasagna noodles into small pieces and add them to the pot. Stir once to combine everything.
Cover and cook on low for 6 to 8 hours, until the beef is fully cooked and the noodles are soft.
Ladle the soup into bowls and top each serving with a spoonful of ricotta, a handful of mozzarella, a sprinkle of Parmesan, and a few basil leaves.