
This dump and bake meatball casserole is the ultimate weeknight dinner solution for busy families. The magic happens when uncooked pasta, sauce, and meatballs transform into a bubbling, cheese-topped masterpiece with minimal effort. I created this recipe during a particularly hectic season of soccer practices and piano lessons, and it quickly became our household's most requested dinner.
I first made this casserole when I was running late on a Thursday evening with hungry teenagers waiting. The look of pure joy on their faces when they saw the bubbling cheese told me this would become a regular in our rotation.
Ingredients
- Jar pasta sauce your favorite brand adds rich tomato flavor and essential seasonings
- Water creates the perfect environment for cooking the pasta directly in the casserole
- Penne pasta holds up well during baking and catches sauce in its tubes
- Mozzarella cheese creates that irresistible stretchy cheese pull everyone loves
- Frozen meatballs a convenient protein that adds hearty flavor without extra work
- Dried parsley flakes adds a pop of color and subtle freshness to the finished dish
Step-by-Step Instructions
- Preheat the Oven
- Set your oven to 425°F and thoroughly grease your 9x13 casserole dish to prevent sticking. The high temperature ensures the pasta cooks properly while creating those delicious crispy edges around the perimeter.
- Assemble Pasta Base
- Add the uncooked pasta directly to your greased dish then pour in the water and pasta sauce. Stir everything together until each piece of pasta is fully coated in liquid. This ensures even cooking and prevents any dry spots.
- Layer the Casserole
- Distribute half of your thawed meatballs evenly across the pasta mixture. The meatballs will partially sink into the sauce which is perfect. Sprinkle half the mozzarella over everything creating a middle layer of cheese that will melt beautifully throughout.
- Finish Assembly
- Add the remaining meatballs in organized rows to create an attractive presentation and ensure even distribution in every serving. Cover everything with the remaining mozzarella cheese making sure to reach the edges where the cheese will create delicious crispy bits.
- Add Herbs and Cover
- Sprinkle the dried parsley across the entire surface for a pop of color and subtle flavor. Cover the dish tightly with aluminum foil which traps steam and helps cook the pasta properly.
- Bake Covered
- Place in your preheated oven for 25 minutes. This initial covered baking phase allows the pasta to absorb liquid and cook through while the meatballs heat completely.
- Uncover and Finish Baking
- Remove the foil and return to the oven for 10 more minutes. This critical step creates that golden brown cheese top that makes the casserole irresistible while allowing any excess moisture to evaporate.
- Cool Slightly
- Let the casserole rest for 5 minutes before serving. This resting period allows the sauce to thicken slightly and makes serving much easier.

My family particularly loves when I use a spicy arrabbiata sauce and add a sprinkle of red pepper flakes on top. The slight heat perfectly balances the richness of the cheese and meatballs. I still remember the first time my picky nephew tried this dish and asked for seconds a true cooking victory moment.
Make-Ahead Magic
This casserole truly shines as a make-ahead meal. Assemble everything up to 24 hours before baking and store covered in the refrigerator. When ready to cook simply add about 5 extra minutes to the covered baking time. This feature has saved countless weeknight dinners at our house especially on activity nights when we walk in the door starving.
Freezer Friendly Formula
To freeze for future meals assemble the casserole completely but do not bake. Cover tightly with foil and freeze for up to two months. You can bake directly from frozen at 375°F for about 60-70 minutes or thaw overnight in the refrigerator and bake according to the original instructions. I often make two at once one for dinner and one for the freezer which takes barely any extra time.
Creative Variations
The basic formula of this recipe opens up endless possibilities for customization. Try using Italian sausage meatballs for extra flavor or substitute turkey meatballs for a lighter option. The pasta can be swapped for whole wheat penne rotini or even gluten-free varieties. For a complete meal in one dish add a layer of frozen broccoli florets or spinach between the pasta and meatballs. My daughters favorite variation includes a layer of ricotta cheese mixed with an egg and Italian herbs spread over the pasta before adding the meatballs.
Serving Suggestions
While this casserole stands perfectly well on its own a simple green salad and garlic bread make it a complete feast. For casual entertaining serve it straight from the baking dish with a bowl of extra warmed marinara sauce on the side. During cooler months pair it with a cup of tomato soup for a comforting meal that satisfies the deepest hunger. The leftovers if you have any taste even better the next day as the flavors continue to meld overnight.
Recipe Q&A
- → Can I use homemade meatballs instead of frozen?
Absolutely! Fully cooked homemade meatballs work perfectly in this casserole. If using raw homemade meatballs, cook them separately first to ensure they reach the proper internal temperature before adding to the casserole.
- → Why do you add water to the pasta sauce?
The water is essential because the pasta cooks directly in the dish, absorbing liquid as it bakes. The combination of sauce and water creates enough liquid for the pasta to cook properly while still maintaining a rich flavor.
- → Can I use a different type of pasta?
Yes! While penne works well for this dish, you can substitute other medium-sized pasta shapes like shells, rotini, bowties, or elbows. Just maintain the same 16-ounce quantity to ensure proper cooking.
- → How do I know when the casserole is done baking?
The casserole is done when the pasta is tender, the sauce has thickened, and the cheese on top is melted and slightly bubbling with golden edges. Test a piece of pasta to ensure it's cooked through.
- → Can this be made vegetarian?
Yes! Simply substitute the meatballs with plant-based meatballs or add vegetables like sautéed mushrooms, zucchini, or eggplant for a hearty vegetarian version while keeping the same cooking method.
- → Why is it important to let the casserole rest before serving?
The 5-minute rest allows the sauce to thicken slightly and helps the casserole set, making it easier to serve in neat portions. It also prevents burning your mouth on too-hot food!