In a skillet with high sides, brown up ground beef, onions, garlic, seasoning with olive oil.
Add a can of crushed tomatoes & about 1/4 cup of water in the can and swirl to get the rest of the tomatoes out into the skillet. Bring to a boil.
Boil the rotini until 1-2 minutes before al dente, then add the rotini and 1 cup of pasta water to the skillet. Simmer for about 3-5 minutes.
Mix together the ricotta, mozzarella, parsley, grated parmesan, salt, and pepper. Roll into balls.
Turn the heat off and add the cheese balls immediately into the skillet. Cover the skillet with 2 cups of whole milk mozzarella.
Bake uncovered at 400° F for 20 minutes. Then, broil another minute to brown the cheese.
Serve the best dinner ever! Make it!