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Chunky Keto Spaghetti Sauce

Louise | July 26
Chunky Keto Spaghetti Sauce #keto

Let’s face it, not everyone can have parents who are great cooks. If you grew up with lots of microwaving or store-bought sauces, don’t panic.

Even bad cooks can perfect one dish.

So why not perfect our chunky Keto spaghetti sauce?

Full of meat, tomatoes, mushrooms, and green peppers, this chunky sauce is sure to be one of your favorites. If there’s one way to please a family, it’s with a classic Italian dinner. And that needs a good sauce.

Spaghetti Sauce vs Marinara Sauce

There are so many tomato-based sauces out there that it is easy to become confused over which is which. Marinara sauce is probably the easiest to mix up, as it is the most traditional and authentic tomato-based sauces from Italian cuisine.

So, what makes spaghetti sauce different?

Well, it can be argued that there is no actual “spaghetti sauce.” It is more of an Americanized version of tomato sauce that is thicker and can hold many types of ingredients. It’s a free-for-all vs tradition.

Spaghetti Sauce vs Tomato Sauce

There is also the basic tomato sauce which has its own differences from spaghetti sauce.

Actually, tomato sauce is a typical base for a spaghetti sauce and the transformation occurs when additional ingredients are incorporated.

In fact, it is completely acceptable to use tomato sauce as your spaghetti sauce. The fun part is mixing in whatever ingredients you choose.

Alternatives to Adding Sugar to Keto Spaghetti Sauce

One ingredient that many cooks enjoy in their spaghetti sauce is some sugar to help pump up the natural sweetness of the tomatoes.

Obviously, you won’t be wanting to add white sugar to your dish if you plan on eating a Keto-friendly meal.

Now, you should know that sugar is not a necessary ingredient.

However, if you do want to bump up a little sweetness in your sauce there are many Keto-friendly sugar alternatives that will work just as effectively.

How Keto Spaghetti Sauce Differs From the Traditional

I think the main question we always have is what makes this recipe Keto?

If this spaghetti sauce resembles that of your favorite Italian restaurant so closely, then what is the difference?

Well, this recipe, besides omitting any sugar, manages to cut down on carbs.

Tomato paste is used at a minimum and the sauce is completely preservative free. There are many healthy fats incorporated through the sauce, making it quite good for you.

Though, as great as this sauce is, be sure to limit yourself as some sugars and carbs are unavoidable.

Types of Keto Spaghetti to Enjoy With This Sauce

What’s spaghetti sauce without spaghetti? No, you can’t cheat just because this sauce looks so delicious.

Thankfully, there are some wonderful low-carb options to replace the carb heavy pasta. Try making some zucchini noodles or using spaghetti squash.

Add Your Own Finishing Touches

As mentioned above, spaghetti sauce is a bit of a free-for-all. Which means that you can feel free to add all sorts of ingredients.

Here are a few ideas to get you started:

  • Beef
  • Chicken
  • Mushrooms
  • Oregano
  • Spices
  • Bacon

Feel free to explore and make a spaghetti that will be a family favorite. And to keep you on track, enjoy this keto calculator.

Chunky Keto Spaghetti Sauce #keto


Chunky Keto Spaghetti Sauce

  • Author: Louise Hendon
  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Total Time: 35 minutes
  • Yield: 16 servings 1x
  • Category: Sauce
  • Cuisine: Italian


  • 3 Tablespoons (45 ml) of olive oil, to cook with
  • 1 medium onion, peeled and diced
  • 1 medium green bell pepper, diced
  • 2 cloves of garlic, peeled and minced
  • 2 14-oz (400 g) cans of diced tomatoes
  • 2 Tablespoons of fresh basil leaves
  • Salt and pepper, to taste
  • Stevia, to taste


  1. Add olive oil to a large saucepan and saute the onions, bell pepper, and garlic until browned.
  2. Then add in the diced tomatoes and simmer for 20 minutes.
  3. Add in the basil leaves.  Season with salt, pepper, and stevia, to taste.


All nutritional data are estimated and based on per serving amounts.

Net Carbs:  3 g


  • Serving Size: 1 serving = 3-4 Tablespoons
  • Calories: 33
  • Sugar: 2 g
  • Fat: 2 g
  • Carbohydrates: 4 g
  • Fiber: 1 g
  • Protein: 1 g

For more delicious Keto sauce recipes just like this one, check out our other Keto Sauces.


Louise co-founded Louise's Foods, Paleo Living Magazine, Nourishing Brands, & CoBionic. She has considerable research experience but enjoys creating products and articles that help move people just a little bit closer toward a healthy life they love.