1Add olive oil to a large pot and saute chopped onions until softened. Season with salt and pepper.
2Add ground beef and Italian sausage to the pot and cook until browned.
3Add garlic, tomato paste, and mix well, allowing the paste to cook slightly.
4Stir in diced tomatoes, tomato sauce, and chicken stock. Mix thoroughly.
5Season with dried oregano, basil, and red chili flakes. Mix well.
6Add crushed lasagna noodles and simmer for 15 minutes.
7Meanwhile, prepare the cheese mixture by combining ricotta, mozzarella, parmesan, oregano, basil, salt, pepper, and olive oil in a bowl. Mix thoroughly.
8Add a handful of spinach to the soup, and stir. Turn off heat. Spinach will wilt down.
9Serve the soup in bowls, topped with the cheese mixture and a basil leaf.