Follow these simple steps to create the amazing White Lasagna Soup:

1. Cook Sausage: In a large pot, cook the Italian sausage over medium heat until browned, breaking it apart with a spoon. Drain excess fat.
2. Sauté Aromatics: Add the diced onion and garlic to the pot, cooking until the onion is soft and translucent, about 5 minutes.
3. Add Broth: Pour in the chicken broth, bringing it to a simmer.
4. Incorporate Cream Cheese: Stir in the softened cream cheese until melted and well combined.
5. Add Heavy Cream: Pour in the heavy cream, mixing until fully incorporated.
6. Mix Noodles: Add the broken lasagna noodles and Italian seasoning. Allow this to simmer for 10 minutes or until the noodles are tender.
7. Stir in Spinach: Add the fresh spinach and cook until wilted, around 2-3 minutes.
8. Add Cheese: Stir in the ricotta, mozzarella, and Parmesan cheeses until melted and creamy. Season with salt and pepper to taste.
9. Serve: Remove from heat and garnish with fresh basil if desired. Serve warm.

These steps will guide you effortlessly to a bowl of mouthwatering White Lasagna Soup that is sure to impress!