Prepare the Ingredients:
Start by gathering all your ingredients and chopping the onion, garlic, and spinach. This will make the cooking process smoother.
Cook the Meat:
In a large pot over medium heat, add the ground Italian sausage (or chicken) and cook until browned. Once cooked, drain any excess fat.
Sauté Vegetables:
Add the diced onion and minced garlic to the pot. Stir and cook for about 2-3 minutes until the onion is softened and fragrant. Season with Italian seasoning, salt, and black pepper.
Add Broth and Noodles:
Pour in the chicken broth and bring it to a gentle simmer. Add the broken lasagna noodles and cook until they are tender, approximately 10 minutes.
Mix in Creamy Ingredients:
Reduce the heat to low and stir in the whole milk (or heavy cream) and cream of chicken soup (if using). Let it simmer for about 5 minutes until heated through.
Incorporate Cheese and Spinach:
Add in the shredded mozzarella, grated Parmesan, and chopped spinach. Stir until the cheese melts and the mixture becomes creamy.
Final Touch:
Ladle the soup into bowls and top each serving with a dollop of ricotta cheese, a sprinkle of red pepper flakes, and fresh basil or parsley. VoilĂ , your White Lasagna Soup is ready to serve!