Prepare your Dutch oven/Cast iron pot by preheating it on medium heat with 1 tablespoon of olive oil.
Finely chop your onion, mince your garlic, and add them to the pot. Allow the onion and garlic to brown a little and then add in your fresh ground beef.
Season beef with salt and pepper.
Cook until ground beef is cooked through and no longer pink.
Once the meat is cooked add in the marinara sauce, brown sugar, Italian seasoning, parsley, water, and beef broth. Bring to a simmer.
While bringing the soup to a simmer, mix together the mozzarella cheese, parmesan cheese, ricotta cheese, and salt, in a medium size mixing bowl, until all ingredients are combined.
Once the soup is simmering, add two ice cream scoop sizes of the cheese mixture to the soup.
Stir in the cheese until the soup has thickened up a little and the cheese has melted.
Once the cheese has melted and the soup is simmering, add in your lasagna noodles.
Simmer the soup for 15-25 minutes, stirring throughout the cooking process until noodles are al-dente or cooked to your liking.
Add a little more beef broth or water here to get your soup to the consistency you prefer.
Serve soup up into bowls, top with more of the cheese mixture, a garnish of parsley, and a side of garlic toast.