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Easy Slow Cooker Mozzarella-Stuffed Meatballs And Sauce

Tender and flavorful meatballs stuffed with gooey mozzarella cheese, simmered in a homemade tomato sauce. Perfect for a cozy family dinner or meal prepping.

May 04, 2023
98% would make again
Easy Slow Cooker Mozzarella-Stuffed Meatballs And Sauce


for 14 meatballs


  • 7 cups crushed tomato (1.4 kg)
  • ⅓ cup onion (50 g), chopped
  • 2 cloves garlic, crushed
  • 2 teaspoons dried basil
  • 1 teaspoon dried oregano
  • ½ teaspoon pepper
  • ½ teaspoon salt


  • 1 lb beef (455 g)
  • 1 lb mild sausage (455 g)
  • 1 cup breadcrumb (115 g)
  • ⅓ cup onion (50 g), chopped
  • ¼ cup parmesan cheese (25 g)
  • 1 teaspoon onion powder
  • 1 teaspoon garlic powder
  • 1 teaspoon dried thyme
  • 1 teaspoon dried oregano
  • ½ teaspoon salt
  • ½ teaspoon pepper
  • 2 eggs
  • 4 sticks mozzarella cheese, cut into 4-5 even pieces each
  • ½ cup whole milk
  • ½ cup parsley

Nutrition Info

  • Calories 279
  • Fat 14g
  • Carbs 20g
  • Fiber 3g
  • Sugar 6g
  • Protein 17g

Estimated values based on one serving size.


  1. Combine all sauce ingredients in slow cooker and stir. Set to high and cover while making meatballs, or for 30 minutes. (Or use pre-made/canned sauce.)
  2. Combine all meatball ingredients except the mozzarella in a large bowl. Using your hands, mix until fully combined.
  3. Take a golf ball sized piece of the ground beef mixture and place a piece of mozzarella in the middle. Press meat around the piece of cheese, fully enclosing it. Repeat until all meat is used.
  4. Place meatballs in slow cooker and submerge in sauce.
  5. Cover and cook on high for 2-2½ hours, or until meat is fully cooked.
  6. Serve by itself or over pasta.
  7. Enjoy!
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Easy Slow Cooker Mozzarella-Stuffed Meatballs And Sauce