In a large pot over medium-high heat, cook ground beef and sausage until browned. Season with salt and pepper as you cook. Drain grease and remove meat from the pot.

In a large pot, heat olive oil over medium heat. Toss in diced onion and sauté for about 5 minutes, stirring occasionally. Add in minced garlic and cook for another minute or two.

Stir in tomato paste, marinara sauce, spices, and broth. Return meat to pot.

Bring to a boil then add lasagna noodles (broken into 4ths) to pot and reduce heat to medium-low. Cook, stirring occasionally, until noodles are tender. Add spinach, if using.

In a small bowl, stir together mozzarella, Parmesan, and ricotta cheeses.

Ladle the hot soup into bowls, and dollop a scoop of the cheese mixture on top. Garnish with fresh basil.