
This dump and bake meatball casserole transforms frozen meatballs and dry pasta into a hearty, cheesy meal with minimal effort. The beauty lies in its simplicity. Everything goes into one dish and bakes together, creating a comforting dinner that feels homemade despite taking only minutes to prepare.
I discovered this recipe during a particularly chaotic sports season when my kids had activities every night. Now it's our Sunday prep for busy Mondays when everyone comes home hungry and impatient.
Ingredients
- Frozen meatballs: saves tremendous time while still delivering that homemade taste
- Marinara sauce: choose a high quality jar for best flavor as this forms the base of your sauce
- Water or beef broth: the liquid will cook the pasta right in the baking dish
- Uncooked pasta: penne or ziti hold up beautifully during baking and catch sauce in their hollows
- Mozzarella cheese: creates that irresistible melty cheese pull that kids and adults love
- Parmesan cheese: adds a salty nutty finish that elevates the entire dish
- Fresh parsley: optional but adds a pop of color and freshness to this rich dish
Step-by-Step Instructions
- Preheat Oven:
- Begin by setting your oven to 425°F. This higher temperature is crucial for properly cooking the uncooked pasta directly in the sauce. While the oven heats, gather all your ingredients so assembly goes quickly.
- Assemble Casserole:
- This is where the magic happens. In your largest 9x13 baking dish, combine the uncooked pasta, frozen meatballs straight from the freezer, marinara sauce, and water or broth. Stir everything together until the pasta is submerged in liquid. Make sure no pasta is sticking up above the liquid, as it needs to be covered to cook properly.
- Bake Covered:
- Cover the dish tightly with aluminum foil. This creates a steamy environment that cooks the pasta evenly. Place in the oven for 35 minutes. During this time, the pasta absorbs the liquid while the meatballs defrost and heat through, releasing their flavors into the sauce.
- Add Cheese:
- Remove the dish from the oven and carefully take off the foil being cautious of the hot steam. The pasta should be nearly tender. Sprinkle the mozzarella and Parmesan cheeses evenly over the top, covering completely. Return to the oven uncovered for about 10 minutes, watching for the cheese to become perfectly melted and just beginning to bubble and brown in spots.
- Garnish and Serve:
- Once out of the oven, let the casserole rest for about 5 minutes. This allows the sauce to thicken slightly and the flavors to settle. If using, sprinkle with fresh parsley for a bright finish. Serve while still hot and watch as everyone enjoys the cheesy goodness.

My family debates whether the best bites are the crispy cheese corners or the saucy middle sections. My son always claims the corner pieces, while my daughter goes straight for the center where the sauce pools around the meatballs. Watching them strategize their servings always makes dinner more entertaining.
Make It Your Own
This recipe welcomes customization. Try adding a cup of frozen spinach or diced bell peppers before baking to incorporate more vegetables. Italian seasoning or red pepper flakes can enhance the flavor profile if you want something more robust than your marinara provides. For a more substantial meal, layer sliced zucchini or mushrooms between the pasta and meatballs.
Storage Tips
This casserole keeps beautifully in the refrigerator for up to 4 days. Store in an airtight container or cover the original baking dish tightly with plastic wrap. When reheating, add a splash of water if the pasta has absorbed too much sauce. For best results, reheat individual portions in the microwave for 2 minutes, or larger portions covered in a 350°F oven until heated through.
Freezer Friendly
Prepare a double batch and freeze one for later. After assembly but before baking, cover tightly with foil, then plastic wrap, and freeze for up to 3 months. When ready to eat, thaw overnight in the refrigerator, remove plastic wrap but keep foil cover, and bake as directed, adding 15-20 extra minutes to the covered baking time.

Frequently Asked Questions About the Recipe
- → Can I use homemade meatballs instead of frozen?
Yes, you can substitute homemade meatballs, but they should be fully cooked first since the baking time is primarily designed to cook the pasta and heat through pre-cooked frozen meatballs.
- → Why is my pasta not cooking evenly in this casserole?
For even cooking, ensure you're stirring halfway through the baking time as recommended in the notes. Also, make sure your foil is tightly sealed to trap steam, and that pasta is fully submerged in the liquid before baking.
- → Can I make this casserole ahead of time?
This dish is best assembled just before baking because the uncooked pasta will continue absorbing liquid if left sitting. However, you can prepare the ingredients in advance and quickly assemble when ready to bake.
- → What sides go well with this meatball casserole?
A simple green salad, garlic bread, or roasted vegetables make excellent sides. The casserole is hearty on its own, so light sides work best to complement without overwhelming.
- → Can I freeze leftovers of this casserole?
Yes, leftovers can be frozen in airtight containers for up to 2 months. Thaw overnight in the refrigerator and reheat in the microwave or covered in the oven until heated through.
- → Can I use different types of cheese?
Absolutely! While mozzarella provides that classic gooey texture and Parmesan adds flavor depth, you can experiment with provolone, fontina, or an Italian cheese blend for variety.