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Slow Cooker Meatball Casserole Recipe

Slow Cooker Meatball Casserole Recipe


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4.8 from 33 reviews

  • Total Time: 3 hours 10 minutes
  • Yield: 6 1x

Description

Comfort meets convenience in this hearty Slow Cooker Meatball Casserole, blending rich Italian flavors with simple home-style cooking. Savory meatballs nestled in creamy sauce promise a satisfying meal that welcomes you home with warmth and deliciousness.


Ingredients

Scale

Main Protein:

  • 1 (24 ounces / 680 grams) bag frozen fully cooked meatballs

Pasta and Sauce:

  • 3 cups marinara sauce
  • 3 cups uncooked pasta (penne or rotini)
  • 2 cups water or low-sodium chicken broth

Seasonings and Cheese:

  • 1 teaspoon Italian seasoning
  • ½ teaspoon garlic powder
  • Salt and pepper, to taste
  • 1 ½ cups shredded mozzarella cheese
  • ¼ cup grated Parmesan cheese
  • Fresh parsley or basil, chopped (optional, for garnish)

Instructions

  1. Prepare the slow cooker by lightly coating the interior with nonstick cooking spray to prevent sticking.
  2. Gently place the meatballs into the slow cooker and pour in the marinara sauce, adding liquid to create a rich, flavorful base.
  3. Season the mixture with Italian herbs, garlic powder, and a delicate balance of salt and pepper, stirring to ensure even distribution of flavors.
  4. Carefully nestle the uncooked pasta into the sauce, making certain it is mostly submerged to promote even cooking.
  5. Set the slow cooker to high temperature and allow the dish to simmer for approximately 2 1/2 to 3 hours, or alternatively use the low setting for 5-6 hours until the pasta reaches a perfectly tender consistency.
  6. In the final stages of cooking, generously sprinkle a blend of mozzarella and Parmesan cheese across the surface, creating a luscious, melted topping.
  7. Cover and continue cooking until the cheese transforms into a golden, bubbling layer that adds a creamy richness to the casserole.
  8. Once complete, serve the meatball casserole piping hot, optionally garnishing with fresh herbs to enhance the visual appeal and provide a bright, aromatic finish.

Notes

  • Customize meatballs by using homemade or store-bought varieties to match dietary preferences like gluten-free, beef, turkey, or plant-based alternatives.
  • Use whole wheat or protein-enriched pasta for added nutrition and to create a more balanced one-pot meal that supports healthier eating goals.
  • Prevent pasta from becoming mushy by choosing shorter pasta shapes like penne or rotini, which hold up better during slow cooking and maintain a pleasant texture.
  • Reduce sodium content by selecting low-sodium marinara sauce and using low-sodium broth, perfect for those monitoring salt intake or managing heart health.
  • Prep Time: 10 minutes
  • Cook Time: 3 hours
  • Category: Dinner, Lunch
  • Method: Slow Cooking
  • Cuisine: American

Nutrition

  • Serving Size: 6
  • Calories: 400
  • Sugar: 6 g
  • Sodium: 950 mg
  • Fat: 16 g
  • Saturated Fat: 8 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0 g
  • Carbohydrates: 45 g
  • Fiber: 2 g
  • Protein: 20 g
  • Cholesterol: 50 mg