Meatball Sub Casserole

If you love the classic meatball sub sandwich, this Meatball Sub Casserole is about to become your new go-to comfort meal. It’s made with simple, ready-made ingredients, comes together in minutes, and delivers all the cheesy, saucy, savory flavors you’d expect from your favorite sub shop. Perfect for busy weeknights, potlucks, or feeding a hungry family, this dish is hearty, satisfying, and incredibly easy to prepare.

Ingredients

• 1 can Pillsbury Refrigerated Biscuits
• 1 jar pasta sauce (24 oz / 650 ml)
• 1 package frozen cooked meatballs (about 32 meatballs)
• 1 cup mozzarella cheese, shredded
• 1 teaspoon Italian seasoning

Instructions

• Preheat oven to 375°F (190°C) and grease a 9×13-inch casserole dish
• Cut each biscuit into 4 pieces and spread evenly in the dish
• Pour pasta sauce over the biscuit pieces and gently mix to coat
• Arrange frozen meatballs evenly on top
• Sprinkle mozzarella cheese and Italian seasoning over everything
• Bake for 40 to 45 minutes until bubbly and golden
• Let cool for a few minutes before serving

Serving and Storage Tips

• Serve hot with a side salad or garlic bread for a complete meal
• Garnish with fresh parsley or extra Parmesan for added flavor
• Let the casserole sit 5–10 minutes before cutting for cleaner portions
• Store leftovers in an airtight container in the refrigerator for up to 3 days
• Reheat in the oven at 350°F or microwave until warmed through
• Freeze portions for up to 2 months and thaw overnight before reheating

Variations

1. Use ground beef meatballs for a richer flavor instead of frozen
2. Swap mozzarella with provolone for a more authentic sub taste
3. Add sautéed onions and bell peppers for a Philly-style twist
4. Use spicy marinara or add red pepper flakes for heat
5. Mix in cream cheese with sauce for a creamy version
6. Add mushrooms for extra texture and flavor
7. Use garlic butter biscuits for a deeper flavor base
8. Replace biscuits with crescent roll dough for a softer texture
9. Add a layer of ricotta cheese for a lasagna-style variation
10. Top with Parmesan cheese for a crispy golden finish
11. Use turkey meatballs for a lighter option
12. Add chopped spinach for a healthier twist
13. Use BBQ sauce instead of pasta sauce for a smoky version
14. Make it low-carb by replacing biscuits with cauliflower dough
15. Add pepperoni slices for a pizza-inspired casserole

FAQs

1. Can I use fresh meatballs instead of frozen?
Yes, just make sure they are fully cooked before adding.

2. Can I make this ahead of time?
Yes, assemble it and refrigerate, then bake when ready.

3. What type of pasta sauce works best?
Any marinara or tomato-based sauce works great.

4. Can I use homemade biscuits?
Yes, homemade dough works perfectly.

5. How do I know when it’s done?
It should be bubbly, hot, and the biscuits fully cooked.

6. Can I freeze this casserole?
Yes, freeze after baking for best results.

7. What cheese alternatives can I use?
Cheddar, provolone, or a cheese blend work well.

8. Can I make it vegetarian?
Yes, use plant-based meatballs.

9. Why are my biscuits undercooked?
Make sure they are cut small and evenly spread.

10. Can I double the recipe?
Yes, use a larger dish or two pans.

This Meatball Sub Casserole is the ultimate comfort food shortcut that doesn’t sacrifice flavor. With minimal prep and maximum taste, it’s perfect for anyone who wants a hearty, crowd-pleasing dish without spending hours in the kitchen. Whether you stick to the classic version or try one of the variations, this recipe is sure to become a regular favorite.

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