Go Back Email Link
Two plates with homemade slow cooker meatballs
Print Pin

Slow Cooker Meatballs in Homemade Sauce

The best Crock Pot Italian Meatballs simmered in Homemade Sauce. This healthy recipe is super easy to make! Serve over spaghetti squash or zucchini noodles and top with shredded Parmesan cheese. Yum!
Course slow cooker recipes
Cuisine Italian
Keyword crock pot meatballs, homemade meatballs, Italian meatballs, meatballs in sauce, slow cooker meatballs
Prep Time 15 minutes
Cook Time 6 hours
Total Time 6 hours 15 minutes
Servings 6 servings
Calories 334kcal
Author Lauren Keating


  • 2 Tablespoons olive oil
  • 1 small onion minced
  • 6 garlic cloves minced
  • 1 egg
  • 2 slices bread torn into small pieces
  • ¼ cup panko bread crumbs
  • 1 cup spinach finely chopped
  • ½ teaspoon onion powder
  • 1 teaspoon dried oregano
  • ¼ teaspoon red pepper flakes
  • ¼ teaspoon salt
  • ¼ teaspoon pepper
  • cup milk dairy or nondairy
  • 1 pound 93% lean ground beef
  • ¼ cup grated parmesan cheese


  • 15- ounce can crushed tomatoes
  • 15- ounce can fire-roasted diced tomatoes
  • ¼ cup fresh basil chopped
  • 2 Tablespoons Italian seasoning
  • ¼ teaspoon red pepper flakes


  • To make the meatballs, heat the oil in a large skillet over medium-high heat. Add the onion and garlic and cook for 3-4 minutes, until softened.
  • Transfer the onions and garlic to a mixing bowl and let cool slightly.
  • Stir in the egg, bread pieces, breadcrumbs, and seasonings. Let sit for 5 minutes.
  • Mix in the ground beef, spinach, and parmesan.
  • Using a meatballer or damp hands, form the mixture into 12-16 meatballs.
  • Return the skillet to the stove. Add the meatballs in a single layer and cook 304 minutes per side, until browned.
  • Add the sauce ingredients to your slow cooker. Stir well to combine. Gently add the meatballs to the sauce.
  • Cover and cook on low for 4-6 hours.


Serving: 1g | Calories: 334kcal | Carbohydrates: 22g | Protein: 29g | Fat: 15g | Saturated Fat: 5g | Polyunsaturated Fat: 9g | Cholesterol: 103mg | Sodium: 567mg | Fiber: 5g | Sugar: 7g