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Home » Recipes » Dressing, Sauces, and Seasonings

Low Carb Sugar Free Marinara Sauce

Modified: Dec 13, 2022 by Kori Butler · Published: Dec 7, 2022

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The perfect go-to marinara sauce recipe! You'll love its garden-style, slightly chunky texture with fresh vegetables blended perfectly for amazing flavor. A healthy recipe - gluten-free, sugar-free, low-carb keto-friendly spaghetti sauce!

A white bowl of marinara sauce and a bowl of spaghetti and sauce with parmesan cheese.Pin

Why you'll love this Low Carb Spaghetti Sauce

"There is something so comforting about a plate of spaghetti. I love that this sauce is hearty and full of fresh vegetables and herbs. Serve over traditional pasta or, better yet - over zucchini noodles to keep it low-carb! "

Use this marinara sauce to top any pasta, in recipes such as lasagna stuffed peppers and eggplant lasagna. If you like your spaghetti sauce with meat try this instant pot version.

Go-To Recipe

Everyone needs a basic go-to recipe for marinara, and this is IT.

Homemade marinara sauce is super simple to make, and you know exactly what is in it. Store-bought marinara is packed full of added sugar, sodium, and preservatives! Yuck!

Once you make this recipe, it will become your new favorite go-to for homemade garden-style marinara.

Versatile

This marinara sauce is super easy to make, and you can use it for multiple different recipes. Use it for traditional spaghetti, lasagna, stuffed peppers, ravioli, or any of your favorite Italian dishes!

Low Carb Keto Spaghetti Sauce

Unlike your traditional store-bought spaghetti sauce or marinara, this recipe has no added sugar. That makes this recipe keto-friendly, low-carb, and gluten-free!

Healthy Spaghetti Sauce ingredients

  • Extra Virgin Olive Oil - you can substitute with your favorite cooking oil if preferred. I find that extra virgin olive oil has the best flavor and is a healthier oil to use.
  • Onion - medium-sized, any variety you prefer.
  • Garlic - use store-bought minced garlic for ease or finely chopped fresh garlic for more flavor.
  • Celery
  • Carrots
  • Kosher Salt
  • Ground Black Pepper
  • Canned Crushed Tomatoes - you can use fresh tomatoes if you prefer, or just add some diced fresh tomatoes to your sauce for extra texture.
  • Bay Leaves - are used as aromatic in the sauce. You will remove them from your sauce when it is all done.
  • Dried Oregano - you can use fresh or dried in this recipe, whichever you prefer.
  • Basil - you can use fresh or dried in this recipe. Using chopped fresh basil will give a brighter, fresher flavor but dried works well also!

For exact ingredient quantities, please see the recipe card below!

Healthy Spaghetti Sauce variations

Here are a few ways you can customize this recipe:

  • Add a protein to your marinara sauce if you'd like to. Some suggestions would be meatballs, ground beef, ground turkey, sliced or diced sausage, or keep it vegetarian with diced tofu.
  • Feel free to omit or replace any of the items in this recipe.
  • If you don't want a rustic or "chunky" marinara sauce, you can use an immersion blender at the end to make the sauce smooth or to your desired consistency.
  • Kick up the heat by adding some crushed red pepper flakes to your sauce. Start light-handed and add more as you like.

How to make Sugar Free Spaghetti Sauce

First, Saute!

Start by heating olive oil in a large stock pot over medium-high heat. Add the onions first and saute until soft, about 8 to 10 minutes.

Add the garlic and saute for about 1 minute. Add the celery and carrots and saute until the vegetables are soft, about 10 minutes.

Add Remaining Ingredients

Next, add the crushed tomatoes, bay leaves, oregano, basil, salt, and pepper. Bring to a simmer and reduce the heat if needed.

Continue to simmer (uncovered) for 45 minutes to 1 hour until the sauce has reduced and thickened.

Remove Bay leaves

When ready, remove the bay leaves and discard them.

Season the sauce with additional salt and pepper to taste, and enjoy!

How to serve Low Carb Marinara Sauce

Traditionally, I serve this hearty marinara sauce with pasta for spaghetti! You can substitute with zucchini noodles or your preferred noodle alternative to keep this low-carb.

You can use this sauce in any of your favorite Italian dishes as well! I have used it on eggplant parmesan, lasagna, meatballs, stuffed peppers, and so many more.

Don't forget the french bread(that is if you are ok with the extra carbs)! Make homemade and then slather with garlic, butter, and herbs for the best garlic bread.

Meal idea! One of my favorite keto meals is these Lasagna Stuffed Peppers. Use this homemade marinara sauce in the recipe to make them even more delicious! Serve with this simple fresh green salad with Italian Dressing.

A gray bowl of spaghetti noodles topped with marinara sauce and parmesan cheese.Pin

Low Carb Spaghetti Sauce top tips

  • Remember to watch the heat when cooking your marinara and stir frequently. Tomatoes contain sugars that can caramelize and eventually burn on high heat.
  • If your spaghetti sauce is too acidic offset with a little sugar or sugar substitute.
  • For ease, buy already prepared carrots, celery, and onion at the grocery store! They are normally sold together in a clear, plastic, two-pound container found in the produce section.
  • If you prefer a thicker marinara sauce, feel free to add some tomato paste to help thicken your sauce to the desired thickness!

How to store Sugar Free Marinara Sauce

To store leftovers, let the roast cool completely, then transfer to an airtight container. Store in the refrigerator for up to 4 days. See reheating and freezing instructions below.

How to reheat Low Carb Marinara Sauce

Put your marinara into a microwave-safe dish, cover, and heat, stirring every 35 seconds until you have reached your desired temperature. A small saucepan on the stove works just as well over medium heat. Bring the marinara to a simmer, stirring frequently or until the desired temperature has been reached!

How to freeze Healthy Spaghetti Sauce

Cool your marinara uncovered and transfer it to an airtight container. Freeze for up to 3 months. Portion your marinara into 2-cup portions and freeze for easy single-meal portions!

Sugar Free Spaghetti Sauce FAQs

What is the difference between spaghetti sauce and marinara?

The main difference between the two is the broadness of flavor. Spaghetti sauce is more rich and more complex, usually made with a larger list of ingredients, including beef. Marinara, on the other hand, normally does not include meat.

Do Italians put marinara on pasta?

Yes, they sure do! This simple tomato sauce is used to dip into and onto pasta and as a base for pizzas as well.

What can I use if I don’t have marinara sauce?

The best substitutions for marinara are pizza sauce, spaghetti sauce, tomato sauce, tomato paste, or canned tomatoes (stewed tomatoes work the best).

✔️ Recipes With Marinara Sauce

Here are recipes that use marinara sauce:

  • Italian Crockpot Sausage and Peppers
  • Cheese Stuffed Meatballs
  • Low Carb Eggplant Lasagna Recipe
  • Air Fryer Fried Green Tomatoes
  • Air Fryer Cheese Curds
  • Keto Chicken Parmesan Recipe
  • Parmesan Chicken Casserole
  • Stuffed Italian Meatloaf Recipe

If you tried this recipe, let me know! I'd love for you to come back and give it a 5-star rating and/or a review in the comments! 🙂 Let's stay connected, so please share photos of your creations with me and others on Instagram, Facebook, and Pinterest! Don't forget to tag #seekinggoodeats

📖 The recipe.

A white bowl of marinara sauce and spaghetti with marinara.

Healthy Marinara Sauce

The perfect go-to marinara sauce you'll absolutely love. It's a healthy - gluten free, sugar free, low carb keto spaghetti sauce!
5 from 1 vote
Print Recipe Pin Recipe Save Saved!
Author Kori Butler
Prep Time 10 minutes mins
Cook Time 1 hour hr
Total Time 1 hour hr 10 minutes mins
Course Sauces
Cuisine Italian
Servings 8
Calories 133 kcal

Ingredients
  

  • ⅓ cup extra virgin olive oil
  • 1 medium onion (finely chopped)(
  • 2 teaspoons garlic (minced)
  • 2 stalks of celery (finely chopped)
  • 2 carrots (peeled and finely chopped)
  • 1 teaspoon kosher salt
  • ½ teaspoon ground black pepper
  • 2 (32-ounce) cans crushed tomatoes
  • 2 bay leaves
  • 1 teaspoon dried oregano
  • 1 teaspoon dried basil

Instructions
 

  • Heat olive oil in a large stock pot over medium-high heat. Add the onions and saute until soft, about 8 to 10 minutes.
  • Add garlic and saute for 1 minute. Add celery and carrots and saute until the vegetables are soft, about 10 minutes.
  • Add the crushed tomatoes, bay leaves, oregano, basil, salt, and pepper. Bring to a simmer and reduce heat if needed. Continue to simmer (uncovered) for 45 minutes to 1 hour, until the sauce is thickened.
  • Remove bay leaves and discard. Season the sauce with salt and pepper to taste.

Kori's Tips

  • Don't miss all of our helpful hints, substitution ideas, cooking tips, and other delicious recipes that can be found in our post. Check it out!
  • NOTES: If your sauce is too acidity you can add small amounts of sugar (or a sugar substitute) to counteract that. Adjust any seasoning to taste. 
  • VARIATIONS: Brown ground beef or Italian sausage and add to sauce. Meatballs can also be added. 

Nutrition

Calories: 133kcalCarbohydrates: 3gProtein: 0.4gFat: 14gSaturated Fat: 2gPolyunsaturated Fat: 1gMonounsaturated Fat: 10gSodium: 303mgPotassium: 80mgFiber: 1gSugar: 1gVitamin A: 2560IUVitamin C: 2mgCalcium: 15mgIron: 0.3mg
DID YOU MAKE THIS RECIPE?Mention @seekinggoodeatsofficial or tag #seekinggoodeats! Be sure to subscribe to my newsletter to receive more healthy delicious recipes straight to your inbox.

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Hey there, I'm Kori.

I’m a culinary school trained chef specializing in holistic nutrition and wellness. I’ve always been a major foodie, and as I’ve aged, the full impact of my love of food—and not-necessarily-healthy eating habits—caught up to me. In an effort to make positive changes in my life (and hopefully yours, too), I created this website where I could share great-tasting, craveable, healthy recipes.

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