Lara Clevenger

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Home » Low Carb Spaghetti Sauce

Low Carb Spaghetti Sauce

February 21, 2023 by Lara February 21, 2023

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This Low Carb Spaghetti Sauce recipe is made with minimal ingredients and will soon become a family favorite. Bursting with flavor, this homemade keto spaghetti sauce will rival even the best store bought brands!

Keto spaghetti sauce in a saucepan with a spatula
Table of Contents
  • Low Carb Spaghetti Sauce Recipe
  • Why you’ll love this Homemade Keto Spaghetti Sauce
  • Ingredients
  • How to make Low Carb Spaghetti Sauce
  • What to serve with keto spaghetti sauce
  • How to store
  • How to reheat
  • More keto recipes to try
  • Readers Favorite Recipes

Low Carb Spaghetti Sauce Recipe

You’ll love this low carb marinara sauce. It works great as a keto pasta sauce, a pizza sauce, and your favorite Italian recipes!

It’s a great recipe if you’re looking for a homemade sauce that’s super versatile!

This keto spaghetti sauce recipe is super easy to make! It doesn’t use fresh tomatoes, which would make this recipe take MUCH longer to cook.

This red sauce is a basic recipe that even the most novice cook can succeed at. Spices and fresh herbs are the secret ingredients in this low carb pasta sauce.

keto spaghetti sauce in a glass jar with a spoon

Why you’ll love this Homemade Keto Spaghetti Sauce

  • Quick and Easy Recipe! One pot recipe and uses simple ingredients that you can get at your local grocery store.
  • Low in carbs and great for a keto diet. No added sugar, unlike many store bought brands.
  • Fresh flavorful ingredients
  • 5g net carbs per 1/4 cup
Keto spaghetti sauce in a saucepan with a piece of basil

Ingredients

  • olive oil or avocado oil
  • onion
  • fresh garlic
  • crushed tomatoes
  • seasoning: kosher salt or coarse salt, herbes de Provence, oregano, black pepper
  • fresh basil
ingredients post for Keto Spaghetti Sauce

How to make Low Carb Spaghetti Sauce

  1. Heat a saucepan over medium high heat. Add the avocado oil, and once the oil is hot add the diced onions. Cook until the onions are translucent. 
  2. Next add the garlic. 
  3. Once the garlic is fragrant add the crushed tomatoes. Stir. 
  4. Bring to a boil and then add the dried seasonings. Stir.
  5. Reduce the sauce to a simmer. Cover and cook for 20 minutes, stirring occasionally.
  6. Remove from heat. Add in the basil and stir.
diced onions being cooked in a skillet
sauté onions
cooked diced onions in a saucepan
cook until translucent
cooked diced onions and garlic in a saucepan
add garlic
crushed tomatoes in a saucepan
add crushed tomatoes
crushed tomatoes in a saucepan with spices on top
add seasonings and cook
crushed tomatoes in a saucepan with chopped fresh basil
remove from heat and add basil

What to serve with keto spaghetti sauce

This low carb pasta sauce is so versatile! Serve it with any of the following:

  • Easy Air Fryer Keto Meatballs Recipe
  • Air Fryer Frozen Brussel Sprouts
  • Baked Frozen Turkey Meatballs
  • Keto Turkey Meatballs
  • Keto noodles such as zoodles, spaghetti squash, or shirataki noodles
  • Keto meat sauce (I prefer ground beef and Italian sausage)
keto spaghetti sauce in a glass jar on a white background

How to store

  • Store in a mason jar or airtight glass jar for up to 7 days. I even store mine in old Rao’s pasta sauce containers.

How to reheat

Place desired amount of sauce into a small sauce pan and warm up on medium low. If serving with meatballs you can add the meatball to the sauce and reheat those as well.

keto spaghetti sauce in a glass jar with a spoon

More keto recipes to try

If you loved this easy low carb spaghetti sauce, check out these other delicious recipes.

  • Easy Keto Ground Beef Zucchini Casserole
  • Keto Chicken Bacon Ranch Casserole
  • Easy Keto Crockpot Pork Chops
  • Instant Pot Mashed Cauliflower
  • Air Fryer Brussel Sprouts
PHOTO COLLAGE OF RECIPE WITH THE WORDS "VIEW MEAL PLANS"
Keto spaghetti sauce in a saucepan with a spatula
Print Pin
5 from 27 votes

Keto Spaghetti Sauce Recipe

This Keto Spaghetti Sauce recipe is made with minimal ingredients and will soon become a family favorite. Bursting with flavor, this homemade keto marinara sauce will rival even the best store bought brands!
Course Sauce
Cuisine American
Keyword keto pasta sauce, keto spaghetti sauce, low carb marinara sauce
Prep Time 5 minutes
Cook Time 25 minutes
Total Time 30 minutes
Servings 12
Calories 35kcal
Author Lara

Ingredients

  • 1 tbsp avocado oil
  • 1/3 cup onion diced
  • 4 cloves garlic minced
  • 28 oz crushed tomatoes
  • 1 tsp salt
  • 1/2 tsp herbes de provence
  • 1/4 tsp oregano
  • 1/4 tsp black pepper
  • 2 tbsp fresh basil chopped

Instructions

  • Heat a saucepan over medium high heat. Add the avocado oil, and once the oil is hot add the diced onions. Cook until the onions are translucent.
  • Next add the garlic.
  • Once the garlic is fragrant add the crushed tomatoes. Stir.
  • Bring to a boil and then add the dried seasonings. Stir.
  • Reduce the sauce to a simmer. Cover and cook for 20 minutes, stirring occasionally.
  • Remove from heat. Add in the basil and stir.

Notes

  • 12, 1/4 servings

Nutrition

Calories: 35kcal | Carbohydrates: 6g | Protein: 1g | Fat: 1g | Saturated Fat: 0.2g | Polyunsaturated Fat: 0.2g | Monounsaturated Fat: 1g | Sodium: 282mg | Potassium: 207mg | Fiber: 1g | Sugar: 3g | Vitamin A: 163IU | Vitamin C: 7mg | Calcium: 28mg | Iron: 1mg

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    Sesame Salmon Bowl

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Filed Under: keto, Paleo, sauces

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About Me

image of a girl in a pink jacket with fury hood smiling

Hi, I’m Lara! I’m a dietitian and I love to travel the US in my fifth wheel RV with my pups Stella & Loki. I share healthy, low carb and camping recipes along with my travel and bowling stories.

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