Slow Cooker Meatballs and Marinara



  • Onion Mixture Ingredients
  • 2 tablespoons olive oil
  • 2 medium onions (finely chopped)
  • 1 can tomato paste (6 ounces)
  • 6 garlic cloves (crushed and minced)
  • 1 tablespoon oregano
  • ½ teaspoon red pepper flakes
  • ¼ teaspoon salt
  • Ingredients for Marinara
  • ½ cup red wine
  • 2 cans crushed tomatoes (28 ounces each)
  • Ingredients for Meatballs
  • 4 ounces Italian sausage
  • 1 ¼ pounds lean ground beef
  • ½ cup shredded mozzarella cheese
  • ½ cup grated Parmesan cheese
  • 2 large eggs
  • 2 garlic cloves (crushed and minced)
  • ¾ teaspoon salt
  • 3 tablespoons milk
  • To finish marinara
  • ½ cup grated Parmesan cheese
  • Salt and pepper to taste


  1. In a Dutch oven over medium heat mix together the onion, olive oil, tomato paste, garlic, oregano, red pepper flakes, and salt. Cook until onions are softened and slightly browned. Place half of the onion mixture in a large bowl and set aside.
  2. For the marinara add the wine to the onion mixture in the Dutch oven and cook until mixture starts to thicken. Mix in the crushed tomatoes and pour the mixture into the slow cooker.
  3. Add all the meatball ingredients into the large bowl with the onion mixture, and using your hands’ mix until well combined. Form into 12 – 2-inch meatballs and place them on a large plate. Microwave for about 7 minutes until meatballs firm up and start to render some fat.
  4. Work the meatballs into the marinara sauce and cook covered until meatballs are done and sauce is slightly thickened (4 – 5 hours on low). Let settle and skim off any fat that is on the surface. Mix in the remaining parmesan cheese – salt and pepper to taste and serve over spaghetti.