Easiest Way to Cook Delicious Meatball Sub Casserole

Meatball Sub Casserole.

You can cook Meatball Sub Casserole using 10 ingredients and 6 steps. Here is how you achieve that.

Ingredients of Meatball Sub Casserole

1. Prepare 1 tbsp of oil.
2. It's 1 of onion diced.
3. You need 1 of green pepper diced.
4. You need 3 cloves of minced garlic.
5. It's 2 1/2 cups of marinara sauce.
6. Prepare 1/2 tsp of Italian seasoning.
7. Prepare 1 can of refrigerated biscuits.
8. It's 16 oz of bag of Italian meatballs thawed.
9. It's 2 cups of shredded mozzarella cheese.
10. You need 1/3 cup of grated parmesan cheese.

Meatball Sub Casserole step by step

1. Preheat oven to 375 and lightly grease 9x13 pan.
2. Saute onion and pepper in skillet, add garlic for last half minute..
3. Combine onion mixture, marinara sauce and Italian seasoning.
4. Cut biscuits into 6 pieces each and add to mixture with meatballs.
5. Place in baking dish and cook for 25 minutes covered with foil.
6. Remove foil and add cheeses. Bake an additional 15 to 20 minutes..