Easy baked meatballs recipe using frozen cooked meatballs and marinara sauce. This quick dinner idea is perfect for busy weeknights and requires minimal prep. Loaded with melted mozzarella cheese, these baked meatballs make a family-friendly meal that pairs well with pasta, rice, or garlic bread. Simple to customize with different sauces and cheeses, this recipe is a convenient crowd-pleaser that’s ready in under an hour.

Ingredients

24 ounces frozen cooked meatballs (see note)
1 (24-ounce) jar marinara sauce (use your favorite brand)
2 cups shredded mozzarella cheese

Instructions

Preheat your oven to 375°F and position the rack in the middle.
Lightly grease a 9×13-inch casserole dish with cooking spray. Arrange the frozen meatballs in a single layer. (If using thawed cooked meatballs, skip to step 4.)
Bake the meatballs for 20 minutes.
Remove the dish from the oven and pour the marinara sauce evenly over the meatballs. Stir gently to coat all the meatballs, then spread them out evenly.
Sprinkle the shredded mozzarella cheese over the sauced meatballs.
Return the casserole dish to the oven and bake for another 15-20 minutes, until the meatballs are hot and bubbly and the cheese is melted. For a golden-brown cheese topping, broil for 2-3 minutes, watching carefully to avoid burning.
Ensure the meatballs reach an internal temperature of 160°F before serving.

Why You’ll Love This Recipe

Simple and Convenient: Uses frozen meatballs and store-bought marinara for a quick, fuss-free meal.
Comfort Food Classic: A crowd-pleaser with melty cheese and rich tomato sauce.
Versatile: Great for family dinners, potlucks, or game day snacks.

Tips

Use a meat thermometer to check the meatballs’ internal temperature for safe eating.
Avoid overcrowding the dish to ensure even cooking.
If sauce is too thick, add a splash of water or broth before pouring over meatballs.

Variations and Substitutions

Swap marinara sauce for your favorite pasta sauce or a spicy arrabbiata.
Use different cheeses like provolone, mozzarella blend, or parmesan for varied flavor.
For a gluten-free version, check that meatballs and sauce are gluten-free.

FAQs

Q: Can I use fresh meatballs instead of frozen?
A: Yes, fresh meatballs can be used; adjust baking time accordingly until fully cooked.

Q: Can I prepare this ahead of time?
A: Yes, assemble the casserole and refrigerate for up to 24 hours before baking.

Q: How do I store leftovers?
A: Store leftovers in an airtight container in the refrigerator for up to 3 days.

Serving and Suggestions

Serve over cooked pasta or alongside garlic bread for a complete meal.
Pair with a fresh green salad or steamed vegetables to balance the meal.
Great for casual gatherings and easy weeknight dinners.