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Healthy Spaghetti Sauce

This healthy spaghetti sauce is a mild tomato based pasta sauce. It’s an excellent pantry staple that you can use for a wide range of different recipes, including of course, spaghetti!
Prep Time5 mins
Cook Time1 hr
Course: Dinner, Sauce
Cuisine: American, Italian
Keyword: dairy free, egg free, gluten free, nut free, soy free, tomato, vegan
Servings: 6
Calories: 37kcal
Author: Tonje
Cost: cheap



  • First, you should finely chop the onion and mince the garlic.
  • Heat the olive oil in a large pot. Add the onion, and saute for a few minutes until the onion is soft and translucent.
  • Then, add the tomato paste and garlic, and saute for about 30 seconds while stirring until they are warmed up.
  • Add the canned diced tomatoes and salt, and stir to combine.
  • Cover with a lid, and leave the sauce to simmer on very low heat for up to 1 hour. Give the sauce a stir every 20 minutes to ensure that it doesn’t burn.
  • You can either keep the sauce chunky, or if you prefer a smooth spaghetti sauce, you can use an immersion blender or a regular blender to blend it completely smooth.
  • Lastly, finely chop fresh basil, and add this to the sauce a few minutes before serving.



Leftover healthy spaghetti sauce can be stored in a refrigerator for up to 4 days, or frozen for up to 6 months.
I like to make a big batch, and freeze it down in portion sizes for quick and easy future meals. The recipe is really easy to multiply to make larger amounts.

Top tips

  • Allowing the sauce to cook for a while on low heat will make it thicken up, and give it a milder flavor. I highly recommend to not skip this step.
  • You can keep the sauce chunky, or blend it smooth. It comes down to your personal preference.
  • If you are using a low quality brand of diced tomatoes, they might be quite acidic after cooking. If your sauce tastes acidic or sour, you can add a pinch of sugar to balance it out.


Calories: 37kcal | Carbohydrates: 4g | Protein: 1g | Fat: 2g | Saturated Fat: 1g | Sodium: 64mg | Potassium: 114mg | Fiber: 1g | Sugar: 2g | Vitamin A: 122IU | Vitamin C: 4mg | Calcium: 10mg | Iron: 1mg