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Homemade Sugar-Free Pizza Sauce {Keto, Paleo}

Homemade pizza sauce is a super speedy, no-cook, simple sauce that is the perfect topping for homemade pizza. Recipe makes enough to freeze the extras!
a jar of sugar-free pizza sauce on a white board with tomatoes and herbs

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This Sugar-Free Pizza Sauce is a super speedy, simple sauce that is the perfect topping for homemade pizza. Also delicious as a dip, this no-cook pizza sauce is perfect for anyone who follows a low carb or paleo lifestyle.

a jar of sugar-free pizza sauce on a white board with tomatoes and herbs

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I have worked at two pizza places in my life I delivered pizza for one of the places and was a waitress at another. What I am trying to say is I was around a lot of pizza and I ate my fair share. 

I still really love pizza to this day. But now, I make it at home. There is so little that is needed to make good pizza and making your own homemade sugar-free pizza sauce is so easy.

Ingredients for Low Carb Pizza Sauce

  • Canned tomato sauce
  • Canned tomato paste
  • Fresh garlic (if fresh garlic is too strong for you, try using Air Fryer Roasted Garlic)
  • Italian seasoning
  • Baking soda

I have made this sauce for years and used to add dried seasonings, tasting as I went. I finally realized I can get a large container of organic Italian seasoning at Costco for under $5 and it works just great. So while this recipe calls for pre-made Italian seasoning, I have also included a link to a DIY recipe for those interested.

My secret weapon ingredient to keep this sugar-free is a pinch of baking soda. You’ve seen me use baking soda in my Crockpot Spaghetti Sauce, Healthy Sweet Tea Recipe, and Gluten-Free Tomato Soup. Baking soda is perfect for neutralizing acidic flavors with no added sugar. 

Can you Freeze Pizza Sauce?

Yes, absolutely! In fact, I recommend it. I freeze the sauce in canning jars – 8 oz jam jars hold enough for four pizzas, and 4 oz mini jars will hold two pizza’s worth of sauce. For more details on jars I recommend, check out this Canning Supplies List.

How Long Will Sugar-Free Pizza Sauce Last in the Fridge?

You can keep your sauce in air-tight containers for up to a week in the fridge.

How to Use Homemade Pizza Sauce

Besides combining it with Air Fryer Calzones, Puff Pastry Pizza Pockets, Easy Tortilla Pizzas, Whole Wheat Pizza Dough, Air Fryer French Bread Pizza, or Air Fryer Pizza Rolls, it’s so good on tons of other things! Replace it for the marinara in Meatless Gluten-Free Lasagna, add it to Fried Halloumi and Bruschetta Zoodles, or this Whole30 Bruschetta Chicken recipe.

Like to dip appetizers into marinara? Of course, you do! Try it with Air Fryer Ravioli, Air Fryer Zucchini Chips, Air Fryer Green Bean Fries, Air Fryer Pretzel Dogs, Cheesy Garlic Bread, or Air Fryer Artichoke Hearts.

Pro Tips/Recipe Notes

  • The baking soda will react with the acidity in the tomatoes and it will foam a bit and separate. Just stir gently for another few seconds and the sauce will come back together.
  • If you prefer a thinner sauce, add a bit of water or broth until it reaches your desired consistency.
  • If possible, let the sauce sit for 30-60 minutes before using. This will allow all the flavors to develop. It’s still usable right away but tastes better if it can sit.

2 jars of low carb pizza sauce with tomatoes and herbs on a white board

More Delicious Homemade Sauces You’ll Love


One serving has 0 WW Freestyle SmartPoints.

a jar of sugar-free pizza sauce on a white board with tomatoes and herbs
Print Recipe
5 from 6 ratings

Homemade Sugar-Free Pizza Sauce

Prep Time5 mins
Total Time5 mins
Homemade pizza sauce is a super speedy, no-cook, simple sauce that is the perfect topping for homemade pizza. Recipe makes enough to freeze the extras!


  • 1 15 oz can tomato sauce
  • 1 6 oz can tomato paste
  • 3 tbsp Italian seasoning {see note}
  • 1 clove garlic {finely minced}
  • 1/8 tsp baking soda


  • Place the first 4 ingredients in a medium mixing bowl and stir until combined.
    1 15 oz can tomato sauce, 1 6 oz can tomato paste, 3 tbsp Italian seasoning, 1 clove garlic
  • Add in the baking soda and stir.
    1/8 tsp baking soda


Recipe makes enough for 6-8 pizzas depending on how "saucy" you like it.
Transfer extras to 4 or 8 oz canning jars and freeze for up to six months.
To make your own Italian Seasoning, this recipe from The Grant Life works perfectly.
3 tbsp dried basil
1 tbsp garlic powder
1 tsp onion powder
2 1/2 tsp dried oregano
3 tbsp dried parsley
1 tsp dried rosemary
1 tsp dried thyme
1/4 tsp black pepper
1/2 tsp red pepper flakes
For my overseas friends, you can replace tomato sauce with liquidized tomatoes or passata, and tomato paste with tomato puree.
Nutrition Facts
Homemade Sugar-Free Pizza Sauce
Amount Per Serving (2 tbsp)
Calories 9 Calories from Fat 9
% Daily Value*
Fat 1g2%
Saturated Fat 1g6%
Sodium 74mg3%
Potassium 96mg3%
Carbohydrates 2g1%
Fiber 1g4%
Sugar 1g1%
Protein 1g2%
Vitamin A 142IU3%
Vitamin C 2mg2%
Calcium 16mg2%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.


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15 comments on “Homemade Sugar-Free Pizza Sauce {Keto, Paleo}”

  1. Your pizza sauce recipe sounds delicious!
    How would I go about making it using fresh tomatoes from my garden? TIA

    • This spaghetti sauce recipe uses garden-fresh tomatoes and would be adaptable for pizza sauce if you cooked it WAY down, or added a can of tomato paste to it.

      • Thank you Sarah! When using your spaghetti sauce recipe as a base to make pizza sauce would I omit the seasoning from the spaghetti sauce recipe add in the 3 TBSP of Italian seasoning that’s called for in your pizza sauce recipe or would I season it the way it says in the spaghetti sauce recipe and also add in the 3 TBSP? I don’t want to under or over season the pizza sauce. TIA

  2. Love this sauce! I always try to have some in the freezer!5 stars

  3. Baking soda! Who knew that was the magic ingredient! I’ve tried so many homemade recipes and always go back to can cause it’s easier and they don’t have that acidic taste.

    I’m going to try your recipe this weekend.

    Thank you so much for posting!5 stars

  4. Love your blog Sarah and just looked at this recipe. What is in the tomato sauce in the can? I don’t think we get this here in the UK

  5. Thanks for sharing. Have a great week.5 stars

  6. Can you post your recipe for whole wheat pizza dough? I LOVE your blog!5 stars