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5 from 4 votes

Slow Cooker Spaghetti Sauce

This Slow Cooker Spaghetti Sauce is the perfect dinner solution for busy weeknights! Made with garden fresh tomatoes, you can taste the freshness in every bite. Make it with or without meat - your choice!
Course Entree
Cuisine American
Keyword spaghetti sauce
Prep Time 15 minutes
Cook Time 8 hours
Total Time 8 hours 15 minutes
Servings 16
Calories 98kcal
Author Trish - Mom On Timeout


  • 5 lbs fresh tomatoes (see note below for using canned tomatoes)
  • 2 tbsp extra virgin olive oil
  • 1 large yellow onion diced
  • 1 red bell pepper diced
  • 1 jalapeno diced (optional)
  • 3 cloves of garlic minced
  • 1 tsp salt
  • 1/2 tsp pepper
  • 1 tbsp Worcestershire sauce
  • 6 oz tomato paste
  • 2 tbsp chopped fresh basil
  • 2 bay leaves
  • 2 tbsp Italian seasoning
  • 1 tbsp sugar
  • 1 to 2 pounds lean ground beef turkey, or Italian sausage


  • Bring a large pot of water to a boil.
  • Fill a large bowl with ice water.
  • Drop tomatoes 5-6 at a time into the boiling for about 45 seconds. Transfer to the ice bath. Repeat with all tomatoes.
  • Peel skin off of tomatoes and squeeze out excess liquid and seeds. (The skin should very easily just peel off.)
  • Heat olive oil in a medium saute pan. Add onion and peppers and saute for 4 to 5 minutes until onions are translucent. Sir in garlic, salt, and pepper and cook for an additional minute.
  • Combine tomatoes, onion mixture, Worcestershire sauce, tomato paste, basil, bay leaves, Italian seasoning and sugar in a large slow cooker and stir to combine.
  • If you are making a meat sauce, stir in meat now.
  • Place a folded paper towel between the lid and the insert of the slow cooker and cook on low for 6 to 8 hours or on high for 3 to 4 hours.


  • Don't have access to fresh tomatoes? No problem. Use (3) 28 oz cans of crushed or diced tomatoes - or a combination of both.
  • Yields 4 quarts.


Calories: 98kcal | Carbohydrates: 10g | Protein: 8g | Fat: 4g | Saturated Fat: 1g | Cholesterol: 18mg | Sodium: 266mg | Potassium: 576mg | Fiber: 3g | Sugar: 6g | Vitamin A: 1613IU | Vitamin C: 33mg | Calcium: 33mg | Iron: 2mg