Step 1: Brown the Meat
In a skillet over medium heat, cook ground beef (or chicken) with chopped onion until browned and fragrant, about 6–8 minutes. Add minced garlic during the last minute of cooking. Drain any excess fat.
Step 2: Combine Ingredients in the Crockpot
Transfer the cooked meat mixture to your slow cooker. Add crushed tomatoes, tomato sauce, tomato paste, broth, and seasonings (Italian herbs, basil, salt, pepper, and red pepper flakes). Stir well to combine.
Step 3: Slow Cook
Cover and cook on LOW for 6–7 hours or HIGH for 3–4 hours, until the flavors meld together and the soup is rich and aromatic.
Step 4: Add the Pasta
About 30 minutes before serving, stir in broken lasagna noodles (or tortellini if using). Continue cooking until the noodles are tender.
Step 5: Make the Cheese Topping
In a small bowl, combine ricotta, mozzarella, Parmesan, and parsley. Mix until smooth and creamy.
Step 6: Serve & Enjoy
Ladle the hot soup into bowls and top each serving with a generous spoonful of the cheese mixture. If desired, drizzle with a touch of cream for extra richness.
Cooking Tip:
If making Chicken Lasagna Soup, swap the ground beef for shredded cooked chicken and use chicken broth for a lighter, comforting twist.