The slow cooker does all the simmering for you with this easy Crock Pot Spaghetti Sauce with Ground Beef.
It makes a big batch and freezes beautifully!

Prep Time: 20 minutes
Cook Time: 8 hours
Total Time: 8 hours 20 minutes
Total Servings: 15


  • 1 Tablespoon olive oil 
  • 2 lbs. ground beef 
  • 1 large yellow onion, chopped 
  • 5 large garlic cloves, minced
  •  3 (28 oz) cans crushed tomatoes 
  • 1 Tablespoon tomato paste 
  • 6 Tablespoons (a heaping 1/3 cup) fresh chopped basil 
  • 6 Tablespoons (a heaping 1/3 cup) fresh chopped parsley 
  • 2-4 Tablespoons sugar, to taste 
  • 2 teaspoons oregano 
  • 1 teaspoon red pepper flakes (optional) 
  • 1 teaspoon Kosher salt, plus more, to taste 
  • Fresh ground pepper


  1. Heat the oil in a large skillet or Dutch oven over medium heat. Add the beef and onions, spreading them evenly over the skillet, and cook undisturbed for several minutes. Stir, breaking up the beef, and continue to cook until beef is browned and onion is softened, about 8 minutes. Add the garlic and stir until fragrant. Season to taste with salt and pepper. Drain any excess fat from the pan. 
  2. In a slow cooker, combine the crushed tomatoes, paste, basil, parsley, 2 Tablespoons sugar, oregano, red pepper flakes, and salt. Stir in the ground beef mixture and taste. Add salt, pepper, and additional sugar, to taste. 
  3. Cover and cook on low for 8 hours or on high for 4.

Freeze leftover sauce in 3-3.5 cup portions in a freezer-safe ziploc bag.