This simple low carb keto pizza sauce recipe is so easy to make! It’s perfect for pizza, chicken parmesan, or any of your favorite comfort foods.
Have a few extra tomatoes from your garden or some cans in your pantry? Then you probably have everything you need to make this recipe!
I’ve had a hard time finding a good sugar-free pizza sauce at the store that's suitable for a keto diet. That’s what inspired me to develop this recipe.
There are a few good brands you can buy now. But this keto pizza sauce is so easy, you may just start making your own from now on. It’s so easy to make from scratch!
You can use fresh or canned tomatoes for this recipe. You can strain the seeds, but I just leave them in. It’s much easier and I don’t notice them.
Then, simply combine the ingredients, cook in the microwave, and puree in a blender or food processor. That’s it!
This sauce is perfect for pizza night or to use as a keto pasta sauce. Trust me, once you make it, you’ll find tons of uses for it!
This keto pizza sauce recipe comes together in just a few very easy steps. It requires almost no work at all!
You can skip this if using canned tomatoes.
- To easily skin the tomatoes, start by gently cutting an “X” at the base of each one.
- Place the tomatoes in boiling water for 30-60 seconds.
- Gently remove the skin.
- Cut the tomatoes into quarters and place in a microwave safe bowl.
Cook and blend
- Add the optional sweetener and seasonings to the tomatoes.
- Cook uncovered in the microwave on MED HIGH to HIGH for about 20-30 minutes, removing excess liquid in the middle of cooking.
- Transfer the tomato mixture into a blender or food processor.
- Puree until smooth.
Your low carb pizza sauce is ready! It can be used immediately or canned for later use. If you want to spic it up, sprinkle in some red pepper flakes.
What pizza sauce is keto
You can find a lot of keto friendly pasta sauces at the store these days. However, pizza sauces may be harder to find.
Rao’s pizza sauce has just 3 net carbs per ¼ cup with no added sugar. It’s pretty common to find at the store, too!
You could use a keto marinara, but it will be thinner than this low carb pizza sauce. I personally don’t like substituting pasta sauces on my pizza.
That’s why I usually make my own keto pizza sauce. I know exactly what ingredients are going into it, and I can make extra for future use!
Carbs in tomatoes
Tomatoes are a low sugar fruit, so you can enjoy them in moderation on keto.
A medium tomato is going to have about 4.8 total carbs and 1.5 grams of fiber. So your average tomato will have about 3.3 net carbs.
This recipe calls for 4 pounds of tomatoes and makes 16 servings. At that size, each serving will only have about 3 net carbs.
️ Serving suggestions
Now that you have your sugar free pizza sauce, what should you make with it?
I have quite a few crust recipes on my site. Once you have the crust and the low carb pizza sauce, you can add toppings to your heart’s desire!
You can check out my almond flour pizza crust, coconut flour pizza crust, almond flour pizza crust with no eggs, or cauliflower pizza crust (keto). There’s a great option for any taste or dietary preference.
Looking for a full recipe that uses my keto pizza sauce? I have plenty of those, too!
- Low Carb Deep Dish Pizza
- Zucchini Pizza Bites
- Pizza Chaffle
- Low Carb Skillet Pizza Chicken
- Crustless Pizza with Ham Slices
This tomato sauce isn't just for low carb keto pizza. It is also perfect for dipping my cheesy cauliflower breadsticks or fathead breadsticks.
There are so many great recipes to make with low carb pizza sauce. You could have a different kind of pizza dish every night of the week!
Looking for a few more keto sauces and condiments to make at home? Check out a few of these favorites:
- Keto Barbecue Sauce is healthier than the store-bought version, but just as tasty. It’s an essential recipe for grilling season!
- Easy Keto Cheese Sauce is easy to make and perfect drizzled over steamed veggies, low carb chips, or tacos.
- Low Carb Marinara Sauce is another great way to use up tomatoes for your classic italian recipes!
- Low Carb Alfredo is creamy, smooth, and perfect over zoodles or keto friendly fettuccine.
- Sugar Free Ketchup is perfect for burgers, hot dogs, keto french fries, and more!
And if you love Chinese food, you must try making your own homemade hoisin sauce.
Follow us on FACEBOOK, PINTEREST, and INSTAGRAM for even more tasty keto-friendly recipes!
Low-Carb Keto Pizza Sauce
- 4 pounds tomatoes
- 2 ½ teaspoons Truvia or 2 Tablespoons (3 packets) low carb sweetener
- 1 teaspoon dried oregano
- 1 teaspoon basil
- ½ teaspoon garlic powder
- Skin tomatoes by first gently cutting an “X” at the base and then placing in boiling water for 30-60 seconds.
- After skin has been removed, cut in quarters and place in microwave safe bowl.
- Add sweetener and seasonings.
- Cook uncovered in microwave on MED HIGH to HIGH (depending on wattage) for about 15-20 minutes.
- Pour out excess liquid and cook for another 5-10 minutes.
- Place tomato mixture into blender or food processor and puree.
- The keto pizza sauce can be used immediately or canned for later use.
Low Carb Sweeteners | Keto Sweetener Conversion Chart
Array ( [serving_size] => 115 [calories] => 21 [carbohydrates] => 4.5 [protein] => 1 [fat] => 0.2 [sodium] => 6 [potassium] => 271 [fiber] => 1.4 [sugar] => 3 [vitamin_a] => 950 [vitamin_c] => 21.5 [calcium] => 10 [iron] => 0.4 [serving_unit] => g )
Notes on Nutritional Information
Nutritional information for the recipe is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs are not included in carb counts as it has been shown not to impact blood sugar. Net carbs are the total carbs minus fiber.
© LowCarbYum.com - Unauthorized use of this material without written permission is strictly prohibited unless for personal offline purposes. Single photos may be used, provided that full credit is given to LowCarbYum.com along with a link back to the original content.
First Published: July 30, 2011... Last Updated: May 12, 2020
What size jars and processing time for pizza sauce?
I freeze this keto pizza sauce. But if I were canning, I'd use smaller size jars that you can use up for just a few pizzas as the sauce won't last too long in the fridge after opening.
I just made this and wow it is great Thanks, I have so many of your recipes, I started 3 weeks ago and used most of your recipes Thank you so much.
Glad you enjoyed the pizza sauce. Wishing you the best on your low carb journey!
When a serving is listed as 115 g what is that in slice, cup or piece
A serving size is about a half cup.
Quick question - I have jarred puréed tomatoes already, so how much should I substitute for the whole tomatoes? I want to try this recipe soon because Rao (which we love!) has been in short supply around here. Thank you!
One source says 1 pound of tomatoes is equivalent to 3 cups puréed. You may want to test it with half the recipe.
I have to say, as an American-Italian, 2nd generation, we never put oregano in pasta sauce. Oregano is only used in Pizza sauce. And we never add sugar although some use a carrot to sweeten the sauce but that depends on the tomatoes used. Each summer, some tomatoes can be sweeter than others. You don't know until you cook the sauce. And garlic is used, parsley and fresh basil. But all that is according to personal taste and time. I just thought youd like to know. I hope Im not offending anyone.
Thanks for the info.
If I wanted to cook this on the stove top, do you know about how long I need to? What should the mixture look like before it is drained and when it is done? Thanks so much!
I'd say maybe an hour at most and then cook for another 10-15 minutes. It may take some experimenting.
I was hoping I could freeze this keto pizza sauce, since I don’t know how to can! I probably should learn, but I also don’t have a pressure cooker.
You can freeze the sauce in order to keep it for several months.
I come from wholesomeyum 🙂
I'm so happy you have a recipe for pizza sauce. I knew to come here from your guest post for Keto hamburger buns on wholesome.
I'm really excited to try this recipe....like right now as soon as I am done with this comment 🙂
Hope you like it Lizzy!
Can you use canned tomatoes? Thank You Gail
If I were to use canned tomatoes what would be the equivalent to your recipe?
It'd be the same amount, 4 pounds.
Is it really difficult for me to comprehend that 1 cup of your sauce is 5+ servings. (16 servings=3 cups) Was this a typo? I would use a lot more than that 5 of us would use the whole 3 cups. Am I 'out to lunch"! Help!
Each serving is only a couple tablespoons as it's only a thin layer spread on the pizza.
When I make fat head pizza, I get three pizzas, I use two tablespoons od pizza sauce on each. I think you don't really need to have as much sauce as you think.
How do you can it? Like tomato juice in a pressure cooker? What size jars do you use?
I'd use the smaller half pint jars or smaller. You can can it in a pressure cooker.
paired with fat head pizza crust.. soo good!
It is a great combo!
Can you make it without the sweetener? Just curious because I don't have anything except the real stuff. ?
You can. The sweetener just enhances the flavor.
Could I cook this in the crockpot instead of the microwave?
Absolutely! It just takes longer in the slow cooker.
I'll never buy sauce in a jar or can again. I started with canned tomatoes, but still, I never realized that making sauce was as simple as throwing some tomatoes in the ol food processor and cooking it up with some seasoning. I, and my low carb diet, thank you. Thanks to my low carb sauce, Chicken Parmesan has become a nice addition to my limited menu.
It's perfect for a chicken parm!
I am excited about your pizza sauce recipe. Pizza is a favorite of mine but I have diabetes so do not make as often as I did in the past. Have you used cauliflower to make the crust with. If I use your sauce with the cauliflower crust, I will not feel guilty having pizza more often. Thanks for the good recipes you share with us.
I've used the sauce on this cauliflower crust. I'm glad you enjoy the recipes!
Leaving all the seeds in?
I usually do because it's easier. You seed the tomatoes or strain the seeds if you wish.
Can you freeze the pizza sauce?
You can and I have!