Go Back
Slow Cooked Spaghetti Sauce recipe

Slow Cooked Spaghetti Sauce

Course Main Course, Sauce
Cuisine American, Italian Inspired
Keyword slow-cooked-spaghetti-sauce, spaghetti-sauce-recipes
Prep Time 20 minutes
Cook Time 6 hours
Total Time 6 hours 20 minutes
Servings 8 servings
Calories 343kcal
Author Melissa Sperka


  • 2 ½ lb extra lean ground beef
  • 8 oz sweet or spicy Italian sausage
  • 1 large sweet onion finely diced
  • olive oil
  • 4 cloves garlic finely minced
  • 1 ½ tablespoon dry Italian seasoning
  • ½ teaspoon crushed red pepper flakes
  • ½-1 tablespoon coarse sea salt [more or less to your taste]
  • ½ teaspoon freshly ground black pepper
  • 1 24 oz jar marinara sauce [i.e.Bertolli Five Cheese]
  • 2 8 oz cans basil garlic & oregano tomato sauce
  • 1 14.5 oz can basil garlic & oregano diced tomatoes
  • 1 6 oz can basil garlic & oregano tomato paste
  • 3-4 tablespoon brown sugar adjust to taste
  • ¼ cup chopped fresh basil
  • 1-2 16 oz packages thin spaghetti cooked to al dente (adjust amount based on servings needed)


  • On the stove top in a large skillet, over medium-high heat, brown ground beef, Italian sausage and diced onion in a couple of tablespoons of olive oil. Cook until no pink remains..
  • Drain any excess fat from the pan, then add minced garlic, dried Italian seasoning, red pepper flakes, sea salt and black pepper.
  • Meanwhile, pour all of the remaining ingredients: marinara sauce, tomato sauce, tomatoes, tomato paste, and brown sugar into a 6 quart slow cooker.
  • Add cooked ground beef, Italian sausage, onion and seasonings to the slow cooker and give it a good stir to blend the ingredients together.
  • Place the lid firmly on top, and set the slow cooker on low. Cook for 6-8 hours.
  • Just before serving mix in ¼ cup of chopped fresh basil. Taste and adjust the seasonings, if needed.
  • Serve over hot spaghetti.


Don't shy away from the brown sugar. It neutralizes the acidic taste of the tomatoes and lends a richness to the sauce that makes it so delicious! If you'd like to change it up a little, toss in ¾ cup of pepperoni minis 2 hours before the sauce is finished cooking. Kids always love a surprise ingredient!


Serving: 1serving | Calories: 343kcal | Carbohydrates: 12g | Protein: 36g | Fat: 16g | Saturated Fat: 6g | Trans Fat: 1g | Cholesterol: 109mg | Sodium: 914mg | Potassium: 845mg | Fiber: 1g | Sugar: 9g | Vitamin A: 403IU | Vitamin C: 8mg | Calcium: 42mg | Iron: 5mg