If you love classic meatball subs, this baked meatball sub casserole is about to become a new family favorite. It combines toasted garlic bread, hearty Italian-style meatballs, rich tomato sauce, and plenty of melted cheese into one comforting, oven-baked dish. Perfect for busy weeknights, game days, or casual gatherings.

Why You’ll Love This Recipe
- Quick prep with simple, convenient ingredients
- Feeds a crowd with minimal effort
- Kid-friendly and perfect for parties
- Customizable with your favorite cheeses or add-ins
Ingredients
- 1 package frozen garlic bread
- 2 jars quality pasta sauce
- 40 frozen Italian-style meatballs
- 2 cups shredded mozzarella cheese
- 1/4 cup grated Parmesan cheese
Instructions
1. Toast the Bread
Preheat your oven to 425°F (220°C). Bake the garlic bread until golden and crispy. Allow it to cool slightly, then cut into bite-sized pieces.
2. Heat the Meatballs
Lower the oven temperature to 350°F (175°C). In a large saucepan, heat the pasta sauce until it begins to simmer. Add the frozen meatballs and cook over low heat until warmed through.
3. Assemble the Casserole
Spread the toasted bread pieces evenly across the bottom of a 9×13-inch baking dish. Pour the meatballs and sauce over the bread, ensuring everything is well coated. Sprinkle mozzarella evenly on top, followed by Parmesan.
4. Bake
Bake for 20–25 minutes, or until the cheese is fully melted and bubbly. Let rest for 5 minutes before serving.
Helpful Tips
- For extra texture, toast the bread slightly longer before assembling.
- Use thick pasta sauce to prevent sogginess.
- Add sautéed peppers or onions for extra flavor.
- Fresh basil or parsley makes a great finishing touch.
Serving Suggestions
Serve this casserole with a simple green salad or roasted vegetables for a complete meal. Leftovers reheat well and make a satisfying lunch the next day.
This cheesy meatball sub casserole delivers all the flavors of a classic sandwich in an easy, crowd-pleasing baked dish.
