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Easy Keto Pesto Recipe – Homemade Deliciousness

Let’s make a homemade keto pesto recipe that will leave you never wanting to buy canned store bought pesto sauce again!

Looking for a sauce to spice up your next low carb dish? Let’s make a low carb keto pesto sauce that will have you thinking, WHY DIDN’T I MAKE THIS SOONER?! After sharing our 2 ingredient keto pasta noodle recipe, I knew this recipe was something I had to share.

keto pesto recipes
Easy Keto Pesto Sauce – Make it Homemade!

Fresh Basil and Spinach

Spring is here and if you are the gardening type, perhaps you are growing some basil and spinach in your garden. If so, perfect! If not, NO worries. The pesto recipe can be made with store bought or fresh ingredients from your garden.

While we have a garden that my father-in-law helps us with, I like to buy a basil plant to sit in the window sill in our kitchen. I use this regularly in recipes throughout the week. If given a choice, I will always choose fresh picked ingredients, but totally not opposed to store bought.

What Ingredients Are in Keto Pesto Sauce?

Here are the ingredients we will be using to make our delicious easy keto pesto sauce recipe.

keto pesto ingredients
Keto Pesto Sauce Ingredients

Keto Pesto Ingredient:

  • Fresh Basil (store bought basil from the produce aisle is great!)
  • Fresh Spinach (again, store bought spinach works fine)
  • Salt
  • Black Pepper
  • Walnuts
  • Parmesan Cheese
  • Fresh Garlic (garlic is optional)
  • Extra Virgin Olive Oil

If you don’t do nuts and looking for a nut-free pesto, or a vegan, dairy-free pesto, keep reading!

How to Make Keto Pesto Sauce

Keto Pesto Sauce is super easy to make. There are various ways to make and adapt this recipe, so make it your own!

First, you will put the nuts into the food processor. Give your nuts a rough chop.

Next, add in the remaining ingredients. Pulse the food processor and mix the keto pesto until you reach the consistency that you like!

Do I Need a Food Processor to Make Pesto Sauce?

While food processors are awesome for making pesto sauce in, you do not need one to make this recipe! While I absolutely love my Cuisinart food processor, it’s in the cabinet and is a pain to get out and setup if I am just making a quick recipe.

food processor alternative nutribullet
The Nutribullet makes a great alternative to a food processor or blender!

As an alternative to a food processor, I use a Nutribullet to make my sauces! It’s super easy to clean and make any sauce with – as well as smoothies and other recipes that require cooking.

You can also use a blender to make pesto sauce, though depending on the quality of your blender, results may vary.

How to Store Keto Pasta Sauce

The things about pesto sauce is that while it is yummy, you do not need a whole lot to flavor your dish! So chances are that you will have leftover pesto and that’s no problem!

easy pesto sauce keto recipe
Easy homemade keto pesto sauce in under 5 minutes!

Storing and Freezing

You can keep your keto pesto sauce in the refrigerator for up to 2 weeks! After that time, you can freeze the sauce and reheat for use at a later time.

Carbs in Pesto Sauce

Seeing this is a keto site, who would I be to not share how many carbs in pesto sauce? If you are using the exact recipe that I use for keto pesto, here is the nutritional data for 1 serving (1 ounce of pesto.)

  • 1 Net Carb
  • 1 Gram Fiber
  • 2 Total Carbs
  • 3 Grams Protein
  • 34 Grams of Fat
  • 319 Calories

Nuts in Pesto

Yes, did you know there were nuts in pesto? Here is everything you need to know about them, how to make a nut-free pesto and what nut alternatives you can use if you don’t have walnuts handy.

Nut-Free Pesto

Allergic to nuts? No problem! Here is a nut allergy friendly pesto recipe. To make a nut-free pesto, simply replace the nuts with seeds. We recommend using sunflower seeds or pepitas.

nut free pesto sauce keto low carb
nut-free pesto sauce recipe

Make sure to check your nutrition count as this recipe’s carb count and nutrition data is for when you use walnuts .

Alternative Pesto Nuts

There is nothing worse than seeing a recipe that you want to make to only find out that you don’t have an ingredient! If you don’t have walnuts in your pantry, fret not! Here are alternative pesto nuts for you to use when making homemade pesto sauce.

  • Cashews
  • Almonds
  • Pine Nuts
  • Macadamia Nuts

Dairy Free Vegan Pesto Sauce

To make a dairy free pesto (or vegan pesto sauce) – swap out the parmesan cheese for a nutritional yeast flakes instead. You will want to check the nutrition data to make sure that it aligns with your specific dietary requirements.

pesto keto recipe
Yield: 6

Keto Pesto Recipe

Prep Time: 3 minutes
Total Time: 3 minutes

Add flavor and delight to your favorite meats, vegetables or low carb pastas with this easy to make keto pesto sauce. Learn how to make homemade pesto that is low carb and delicious!


  • Basil - 1 Ounch
  • Spinach - 1.5 Cups
  • Salt - 1.5 Teaspoons
  • Pepper - 2.25 Teaspoons
  • Walnuts - 1/3 Cup
  • Parmesan Cheese - 1.5 Ounces
  • Extra Virgin Olive Oil - 1 Cup
  • Garlic Clove (optional - adds 1g Net Carb)

Kitchen Supplies


  1. We told you this was easy, right? First, let's put the nuts into the food processor for chopping. You will want to give a rough pulse, don't fully chop!
  2. Next, throw in all of your additional ingredients to the food processor. Mix the keto pasta in the food processor to your desired consistency. Some people like it more chopped than other,s. You do you!
  3. Next, use your keto pasta sauce on your favorite meats, vegetables or low carb pasta!


Make sure to check our post for more detail on creating a nut-free pesto or a vegan pesto out of this keto pesto recipe!

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Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 399Total Fat: 42gSaturated Fat: 6gTrans Fat: 0gUnsaturated Fat: 34gCholesterol: 6mgSodium: 689mgCarbohydrates: 4gFiber: 2gSugar: 0gProtein: 4g

Nutrition data is an estimate. For best keto pesto nutrition data, calculate the specific ingredients used in your pesto sauce.

Pesto Sauce Uses

Our keto pesto sauce makes a great topping and flavor additive to meats, vegetables and pasta. Check out our list of keto noodles to find an option that you like!

If you love this sauce – you won’t want to miss our latest low carb sauce recipe: Keto Alfredo Sauce (tastes like Olive Garden copy cat!)

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