Slow Cooker Meatball Casserole Recipe
This hearty slow cooker meatball casserole is the ultimate comfort food—tender pasta, juicy meatballs, and melted cheese in rich marinara sauce. Set it and forget it!
- Prep Time: 5 minutes
- Cook Time: 5 hours
- Total Time: 5 hours 5 minutes
- Yield: 6 servings
- Category: Dinner, Casserole, Slow Cooker Meals
- Method: Slow Cooker
- Cuisine: American, Italian-Inspired
Ingredients
1 (28 oz) bag frozen meatballs (about 32 meatballs)
1 (24 oz) jar marinara sauce
1 cup water or beef broth
2 cups uncooked rotini or penne pasta
1½ cups shredded mozzarella cheese
¼ cup grated Parmesan cheese
1 teaspoon Italian seasoning
½ teaspoon garlic powder
Salt and pepper, to taste
Fresh parsley (optional, for garnish)
Instructions
Spray the inside of your slow cooker with nonstick cooking spray.
Add frozen meatballs, marinara sauce, and water or broth. Stir to combine.
Cover and cook on LOW for 4 hours.
Stir in the uncooked pasta, ensuring it’s fully coated and submerged in sauce.
Cover and cook on HIGH for 30–40 minutes, or until pasta is tender.
Sprinkle mozzarella and Parmesan cheese over the top.
Cover and cook another 10–15 minutes, until cheese is melted and bubbly.
Season with salt and pepper to taste. Garnish with parsley if using.
Serve warm and enjoy!
Notes
Homemade meatballs can be used—just cook them first.
Swap in ziti, shells, or macaroni for different textures.
Add red pepper flakes for a spicy kick.
Don’t skip the water or broth—it ensures the pasta cooks properly.
