Step 1: Preheat & Prepare the Casserole Dish

• Preheat your oven to 375°F (190°C).
• Lightly grease a 9×13-inch baking dish with non-stick spray.

Step 2: Assemble the Casserole

• Spread uncooked pasta evenly in the bottom of the baking dish.
• Pour marinara sauce over the pasta.
• Add 3 cups of water (or broth) and stir everything together.
• Sprinkle in garlic powder, Italian seasoning, and salt for extra flavor.
• Arrange the frozen meatballs on top of the pasta mixture.

Step 3: Bake Covered

• Cover the dish tightly with aluminum foil.
• Bake for 35 minutes, allowing the pasta to absorb the liquid and cook properly.

Step 4: Add Cheese & Bake Again

• Remove the foil and sprinkle mozzarella and Parmesan cheese evenly over the top.
• Return to the oven and bake uncovered for 10-15 more minutes, or until the cheese is golden and bubbly.

Step 5: Serve & Enjoy!

• Let the casserole rest for 5 minutes before serving.
• Garnish with chopped fresh parsley and enjoy!

This easy, no-fuss meatball casserole is ready to serve in just under an hour—with almost no hands-on work!