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keto spaghetti sauce on a wooden spoon

Keto Spaghetti Sauce Recipe | Sugar Free

The simpler the sauce the better. Let the quality ingredients shine in this keto spaghetti sauce recipe.
Course Main Dish
Cuisine Italian
Keyword keto spaghetti sauce
Prep Time 5 minutes
Cook Time 15 minutes
Total Time 20 minutes
Servings 3 servings
Calories 52kcal



  • 1 tbsp olive oil
  • 1/2 medium white onion chopped
  • 2 cloves minced garlic
  • 1/4 tsp fresh thyme
  • 2 tbsp fresh basil roughly chopped
  • 1 14.5 oz can Diced Tomatoes
  • 1/2 cup Water
  • salt and pepper to taste


  • Add olive oil to a saucepan over medium heat. Once heated, add onion and garlic and cook until translucent, 3-5 minutes.
  • Add canned tomatoes, water and herbs.
  • Simmer over medium heat for 10-15 minutes, or until the sauce has thickened. Season with salt and pepper to taste.
  • Serve warm over keto pasta of zucchini noodles.
  • Store in a mason jar in the fridge for 5 days.


If you prefer your keto spaghetti sauce to be smoother you can use a blender to blend the sauce until smooth and uniform.


Serving: 1serving | Calories: 52kcal | Carbohydrates: 2g | Protein: 1g | Fat: 5g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Sodium: 3mg | Potassium: 40mg | Fiber: 1g | Sugar: 1g | Vitamin A: 79IU | Vitamin C: 3mg | Calcium: 12mg | Iron: 1mg