Tip: Another recipe with the exact-same name "Lasagna Soup" ranks higher.
In a large pot heat the oil over medium heat.
Add the sausage and saute about 5 to 7 minutes.
Drain excess fat.
Saute onions until soft, about 6 minutes.
Add garlic and red pepper flakes, saute for 1 minute.
Add tomato paste, saute 5 minutes.
Add tomatoes and juice, the broth and bay leaves and bring to a boil.
Reduce heat and simmer for 30 minutes.
Add the pasta and increase the heat to a boil until pasta is tender.
Discard bay leaves and stir in Basil.
Season with salt and pepper.
In small bowl combine ricotta, Parmesan, salt and pepper.
To serve: Place 2 tbsp of Ricotta mixture in bowl, sprinkle on mozzarella and ladle on soup on top.