Crumble sausage into a large pot and brown over medium heat until cooked through. Stir in garlic, chili flakes, oregano, and onion powder. Add tomatoes, broth, and tomato sauce and bring to a boil and then reduce heat to low and let simmer for 30 minutes.

In a small bowl combine ricotta, parmesan and mozzarella cheeses. Season with salt.

To serve, place a dollop of the cheese mixture in the bottom of a bowl and top with a serving of cooked pasta. Ladle hot soup over the top and let sit for a minute to let the cheese melt.