Meatball Sub Soup Recipe 

Firstly, preheat your oven to 355º and line a large baking sheet with cooking parchment paper. Take a large-sized bowl and combine ground beef, bread crumbs, parsley, garlic in it. Mix well. Add red pepper flake and further season it with salt and ground black pepper.

Form small-sized meatballs out of this meat mixture and place them one by one on the prepared baking sheet. Transfer the baking sheet into the oven and bake meatballs for 15 minutes or until browned and cooked.

In the meanwhile. Take a large pot and heat some oil in it over medium flame. Further, add onions and cook them until they turn golden. This will take around 6 minutes.

Add garlic and saute it until aromatic. Add tomato paste in the cooked mixture and stir it well.

Once you see oil separating add edges, add crushed tomatoes, beef broth, and milk into the pot and give a nice stir.

Further, drop meatballs into the soup and bring to boil. After that, simmer it low flame for 7-8 minutes and then add half the mozzarella and parmesan cheese into the soup. Also add some oregano, salt, and black pepper as per your taste.

Fill the soup into four oven-safe ramekins dishes and top each dish with a slice of baguette bread. Add remaining mozzarella cheese on top and broil until the subsoil becomes brown and bubbly. It will take around 2-3 minutes. Serve hot and enjoy.