Spread frozen meatballs over uncooked rotini along with three additional ingredients in a glass baking dish to make a hearty meal that gets eaten up in no time.

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Step 4: Bake Covered
Bake for 35–40 minutes. Check doneness by lifting a corner of the foil and testing a piece of pasta—it should be tender and the sauce bubbling.

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Step 5: Add the Cheese
Carefully remove the foil and sprinkle the mozzarella evenly over the top. Return the dish to the oven uncovered and bake for another 10–15 minutes, until the cheese is melted and lightly browned.

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Step 6: Let It Rest
Remove from the oven and let it sit for 5–10 minutes before serving.

Tip: Resting helps the pasta soak up any extra liquid, creating a thicker, more cohesive sauce that coats every bite.