Keto Spaghetti Sauce Recipe: Deliciously Low-carb And Easy To Make!

What To Serve With Keto Spaghetti Sauce
Hit the Rating button
Keto Spaghetti Sauce Recipe
This keto spaghetti sauce is thick, rich, and perfect over low carb pasta! Simple ingredients and freezes beautifully!

Hey Friends, it’s Anne from Beyond The Bayou Blog! Today, I’ve find something super tasty: Keto Spaghetti Sauce. It’s packed with flavors and easy to make in just one pan.

Dive into the rich and savory world of Italian cuisine with our Keto Spaghetti Sauce recipe! This low-carb version of classic spaghetti sauce is perfect for those following a keto diet, delivering all the traditional flavors without the added sugars and high-carb vegetables.

Made with simple ingredients and requiring just one pot, this sauce is easy to prepare and versatile enough to complement a variety of dishes.

Whether you’re pairing it with zucchini noodles, spaghetti squash, or keto-friendly pasta, this sauce promises a delicious, guilt-free meal that everyone will love. Enjoy the taste of Italy while staying true to your keto lifestyle!

What Is Keto Spaghetti Sauce?

Keto spaghetti sauce is a low-carb, sugar-free adaptation of traditional spaghetti sauce, designed to fit within a ketogenic diet. Unlike regular spaghetti sauces that often contain sugar and high-carb vegetables, keto spaghetti sauce uses ingredients that are low in carbohydrates while still delivering rich flavor and texture.

Overview: How To Make Keto Spaghetti Sauce?

Overview How To Make Keto Spaghetti Sauce

This keto spaghetti sauce is a game-changer for anyone looking to enjoy a rich, flavorful sauce without the carbs. Perfect for pairing with low-carb pasta, this sauce uses simple, wholesome ingredients and can be easily frozen for future meals.

Start by heating some olive oil in a large saucepan over medium heat. Once hot, sauté finely chopped onion, celery, and minced garlic until they become tender and fragrant. This base of aromatic vegetables sets the stage for a deeply flavorful sauce.

Next, add crushed tomatoes, roughly chopped basil, salt, and pepper to the pan. Bring the mixture to a boil, then reduce the heat to low, cover, and let it simmer for 40 minutes. This slow simmering allows the flavors to meld together beautifully, resulting in a thick and rich sauce.

Once the sauce is ready, you can serve it immediately over your favorite low-carb pasta or let it cool completely for storage. This sauce keeps well in the fridge for up to two weeks, and you can freeze it in portions for up to six months, making it a convenient and delicious addition to your meal prep routine. Enjoy the robust flavors of this keto spaghetti sauce with the ease and simplicity of this recipe!

What To Serve With Keto Spaghetti Sauce

Keto Spaghetti Sauce Recipe

This keto spaghetti sauce is thick, rich, and perfect over low carb pasta! Simple ingredients and freezes beautifully!
Hit the Rating button
Print Pin Rate
Course: Appetizer
Cuisine: American
Prep Time: 2 minutes
Cook Time: 40 minutes
Total Time: 42 minutes
Calories: 72kcal
Author: Anne Carter
Servings: 12


  • Cutting Board
  • Chef's Knife
  • Wooden Spoon
  • Measuring Cups
  • Can Opener


  • 1 small onion
  • 2 stalks celery
  • 2 cloves garlic minced
  • 2 tablespoon olive oil
  • 2 28 oz cans crushed tomatoes 1.6 kg
  • 1/4 cup basil roughly chopped
  • 1/2 teaspoon salt to taste
  • 1/2 teaspoon pepper


  • In a large saucepan, heat the olive oil over medium heat.
  • Add the finely chopped onion, celery, and minced garlic; cook until tender.
  • Stir in the crushed tomatoes, chopped basil, salt, and pepper, then bring to a boil.
  • Once boiling, reduce the heat to low, cover, and let the sauce simmer for 40 minutes.
  • Remove from heat and serve immediately or let it cool completely for storage.


Calories: 72kcal | Carbohydrates: 5g | Protein: 1g | Fat: 2g | Sodium: 103mg | Potassium: 31mg | Fiber: 3g | Sugar: 571g | Vitamin C: 1mg | Calcium: 6mg | Iron: 1mg
Keyword Best keto spaghetti sauce recipe, Easy spaghetti sauce recipe, keto spaghetti sauce recipe, spaghetti sauce recipe

Tips You Should Try!

  1. Layer the Flavors: Start by sautéing some diced onions, garlic, and finely chopped carrots in olive oil until they’re soft and golden. This will add a deep, rich flavor to your sauce.
  2. Add Depth with Wine: Once your vegetables are cooked, deglaze the pan with a splash of red or white wine before adding the tomatoes. This adds a sophisticated depth of flavor that’s hard to beat.
  3. Herb Bouquet: Tie together a bundle of fresh herbs like rosemary, thyme, and bay leaves and simmer them in the sauce. This will infuse the sauce with a wonderful herby aroma without leaving bits of herbs in the final product.
  4. Umami Boost: For a deeper, more savory flavor, add a couple of anchovy fillets or a splash of fish sauce. Don’t worry, it won’t taste fishy—just deliciously complex.
  5. Finish with Freshness: Just before serving, stir in some fresh basil or parsley. This brightens up the sauce and adds a lovely fresh note.
  6. Balance the Acidity: If your sauce tastes too acidic, add a pinch of baking soda or a tiny bit of sweetener to balance it out. This trick smooths out the sharp edges of the tomato.
  7. Texture Control: For a chunky sauce, mash the tomatoes lightly with a potato masher instead of blending them. This gives a rustic feel that pairs well with hearty dishes.
  8. Quality Ingredients: Always use the best quality tomatoes you can find. San Marzano tomatoes are a favorite among chefs for their sweet and rich flavor.

What To Serve With Keto Spaghetti Sauce?

What To Serve With Keto Spaghetti Sauce

Storing and Freezing Low Carb Pasta Sauce

To Store:

  • In the Fridge: Keep the pasta sauce in a covered container. It will stay fresh for up to 2 weeks.

To Freeze:

  • In the Freezer: Put the leftover sauce in a shallow container. It will last for up to 6 months.

Leave a Comment

Recipe Rating