
This hearty dump and bake meatball casserole has been my ultimate weeknight dinner solution for busy evenings when I lack the energy to cook but still want something delicious. The beauty of this recipe lies in its simplicity - no boiling pasta beforehand, just combine everything in a baking dish and let the oven do the work.
The first time I made this casserole was during a particularly chaotic week when I had back-to-back meetings and hungry children. When everyone scraped their plates clean and asked for seconds, I knew I had discovered our new family favorite.
Ingredients
- Rotini pasta: Uncooked - The spiral shape perfectly catches all the sauce and holds up well during baking
- Water: Creates the perfect environment for cooking the pasta right in the casserole dish
- Pasta sauce: Choose a high-quality jar sauce like Rao's or Classico for best flavor since it's a main ingredient
- Frozen precooked meatballs: Thawed - Provides protein and hearty texture without any extra cooking
- Kosher salt: Enhances all the flavors and seasons the pasta as it cooks
- Shredded mozzarella cheese: Creates that irresistible melty cheese topping that makes this dish unforgettable
Step-by-Step Instructions
- Prep Your Baking Dish:
- Preheat your oven to 425°F. Spray a 9x13 baking dish thoroughly with cooking spray to prevent any sticking. This step is crucial since the starches from the pasta can make cleanup difficult if you skip it.
- Combine All Ingredients:
- Add the uncooked rotini pasta, water, pasta sauce, thawed meatballs, and kosher salt to your prepared baking dish. Stir everything together gently until well combined, making sure all pasta is submerged in liquid. Cover the dish tightly with aluminum foil to trap moisture for proper pasta cooking.
- Initial Baking Phase:
- Place the covered dish in your preheated oven and bake for 35 minutes. At the halfway point, approximately 17 minutes in, remove the dish and give everything a thorough stir. This crucial step ensures even cooking and prevents any pasta from drying out or becoming crunchy around the edges.
- Add The Cheese Topping:
- After the initial baking time, remove the dish and stir the contents once more. The pasta should be tender and most of the liquid absorbed. Now sprinkle the shredded mozzarella cheese evenly across the top of the casserole, making sure to cover it completely.
- Final Baking:
- Return the uncovered dish to the oven for an additional 5 to 8 minutes, just until the cheese melts completely and develops some golden spots. Watch carefully to prevent burning. Once done, let it rest for about 5 minutes before serving.

My family loves this recipe most when I use a roasted garlic pasta sauce and add a sprinkle of freshly grated parmesan on top just before serving. The combination of the two cheeses creates a depth of flavor that transforms this simple dish into something special enough for Sunday dinner.
Make-Ahead Tips
This casserole can be assembled up to 24 hours in advance. Simply prepare everything in the baking dish up to the point of baking, cover tightly with plastic wrap and refrigerate. When ready to cook, remove from refrigerator about 30 minutes before baking to take the chill off, then bake as directed, adding about 10 minutes to the cooking time.
Customization Options
The beauty of this recipe lies in its adaptability. Try using Italian sausage meatballs for extra flavor or vegetarian meatballs for a meat-free version. You can also add vegetables like diced bell peppers, spinach, or mushrooms when you stir halfway through cooking for added nutrition. For a spicier version, choose an arrabbiata sauce and add red pepper flakes.
Serving Suggestions
While this casserole is a complete meal on its own, it pairs beautifully with a simple side salad dressed with lemon vinaigrette. For a heartier meal, serve with garlic bread to soak up any remaining sauce. A sprinkle of fresh herbs like basil or parsley just before serving adds a pop of color and freshness that elevates the entire dish.
Storage Instructions
Leftovers can be stored in an airtight container in the refrigerator for up to 4 days. For best results when reheating, add a splash of water or extra pasta sauce before microwaving to prevent the pasta from drying out. You can also freeze individual portions for up to 3 months in freezer-safe containers. Thaw overnight in the refrigerator before reheating for best texture.
Frequently Asked Questions
- → Do I need to cook the pasta before baking?
No, the pasta does not need to be cooked beforehand. It cooks in the oven with the water and sauce.
- → Can I use a different type of meatball?
Yes, you can use any type of meatball as long as they are thawed before adding to the dish. Larger meatballs may need to be cut in half.
- → What kind of pasta sauce works best?
Use a good-quality pasta sauce you enjoy. Classic tomato & basil, vegetable, or roasted garlic sauces are great choices.
- → Why do I need to stir halfway through cooking?
Stirring halfway ensures the pasta is evenly covered by the liquid and prevents crunchy, dry spots.
- → Can I add extra seasonings or cheese?
Yes, customize the flavors to your liking with dried garlic, basil, or Italian seasoning. Add extra cheese like provolone or parmesan for more flavor.