10 Best Keto Spaghetti Sauces
Spaghetti is one of those comfort foods I thought I’d have to give up when I switched to keto. But the world of low-carb living surprised me. One thing that helped me on my keto journey was learning how easy it is to change my favorite meals. I could make them healthier with just a few simple changes.
Enter keto-friendly spaghetti sauces—delicious, rich, and full of flavor, but without the sugar and carb overload. I searched for the best keto spaghetti sauces. I will share my top 10 choices. I’ll explain what I liked and didn’t like about each one.
When you’re on keto, every carb counts, and sneaky sugars in sauces can easily catch you off guard. Many store-bought pasta sauces I used to enjoy had sugar in their ingredients. So, I had to stop using them.
But luckily, keto-friendly versions are popping up everywhere. I tested various store-bought and homemade keto spaghetti sauces. I wanted to determine which ones were low in carbs. I also wanted to see if they tasted as good as or better than regular sauces.
I learned through this process that not all keto sauces are created equal. Some nailed the flavor, while others were lacking in texture or spice. But hey, that’s part of the fun!
This guide shares my top 10 keto spaghetti sauces, including their pros, cons, nutrition facts, and my honest opinions on each one. And if you’re the DIY type, stick around to the end, where I’ll show you how to whip up your own keto spaghetti sauce at home.
1. Rao’s Homemade Marinara Sauce
Nutritional Information (per ½ cup serving):
- Calories: 100
- Carbs: 4g
- Fiber: 1g
- Net Carbs: 3g
- Fat: 8g
- Protein: 2g
What I Loved: Rao’s is a classic. This sauce was a game-changer when I first discovered it because it’s made from simple ingredients like tomatoes, olive oil, and herbs.
No added sugar, and the flavor is rich and deep, with just the right balance of sweetness from the tomatoes and earthiness from the herbs. The texture is thick and hearty, so it coats your zucchini noodles (or any low-carb pasta) beautifully.
What I Didn’t Love: It’s on the pricier side. Depending on where you buy it, Rao’s can be double the price of other sauces, which is a bit of a downside if you’re on a budget. Also, if you like a spicy kick, this sauce might feel a little too mild for you.
2. Victoria White Linen Marinara Sauce
Nutritional Information (per ½ cup serving):
- Calories: 90
- Carbs: 6g
- Fiber: 2g
- Net Carbs: 4g
- Fat: 5g
- Protein: 2g
What I Loved: Victoria White Linen is one of those sauces that feels luxurious. It has a lighter, more delicate flavor compared to Rao’s, but still very rich.
The tomatoes taste fresh, and there’s a hint of sweetness (without any added sugar) that pairs well with the generous amount of olive oil in the sauce. It’s perfect if you prefer a smoother, more refined marinara.
What I Didn’t Love: While the flavor is great, the sauce is a bit thinner than others I’ve tried, which can be an issue if you like your sauce to really cling to the noodles.
Also, the carb count is slightly higher, so if you’re strict about keeping carbs ultra-low, it’s something to watch.
3. Primal Kitchen Tomato Basil Marinara
Nutritional Information (per ½ cup serving):
- Calories: 80
- Carbs: 6g
- Fiber: 2g
- Net Carbs: 4g
- Fat: 4g
- Protein: 2g
What I Loved: Primal Kitchen is known for their clean ingredients, and this sauce is no exception. It’s made with organic tomatoes, no added sugars, and it’s paleo and Whole30-approved.
The basil flavor really shines in this one, making it feel fresh and homemade. The sauce is also packed with healthy fats from avocado oil, which makes it feel indulgent but still light.
What I Didn’t Love: The flavor is mild, so if you’re a fan of bold, garlicky sauces, this one might not hit the mark for you. The price can also be a bit steep compared to more mainstream brands.
4. Otamot Organic Essential Sauce
Nutritional Information (per ½ cup serving):
- Calories: 90
- Carbs: 7g
- Fiber: 3g
- Net Carbs: 4g
- Fat: 7g
- Protein: 2g
What I Loved: Otamot is one of the more unique sauces I tried. It’s packed with hidden veggies like carrots, sweet potatoes, and red peppers, so it feels a bit more nutrient-dense than your average marinara.
The texture is creamy and smooth, and it has a subtle sweetness that comes naturally from the vegetables. Plus, it's organic, which is a nice bonus.
What I Didn’t Love: The hidden veggies come at a cost—carbs! At 7 grams per serving, it’s on the higher end for keto-friendly sauces. It’s also a little too sweet for my taste, especially when compared to more traditional marinara sauces.
5. Yo Mama’s Original Marinara
Nutritional Information (per ½ cup serving):
- Calories: 110
- Carbs: 6g
- Fiber: 2g
- Net Carbs: 4g
- Fat: 9g
- Protein: 2g
What I Loved: Yo Mama’s has a fun name, but it’s seriously good sauce. It has a very fresh, homemade taste with no added sugars or preservatives.
The texture is thick, and it’s perfect for keto because it has a higher fat content compared to some others, thanks to the generous olive oil. It pairs well with meatballs or any hearty dish where you want the sauce to stand out.
What I Didn’t Love: The price is on the higher side, and like some others, it doesn’t have much of a spicy kick, so you might want to add your own seasoning if you like a bolder flavor.
6. Mezzetta Napa Valley Homemade Marinara
Nutritional Information (per ½ cup serving):
- Calories: 70
- Carbs: 4g
- Fiber: 1g
- Net Carbs: 3g
- Fat: 5g
- Protein: 2g
What I Loved: Mezzetta’s sauce is rich in flavor but light on the palate. It has a nice balance of garlic and basil with a hint of sweetness from the tomatoes.
I found it to be perfect for a quick weeknight meal, and it’s one of the more affordable options out there. The lower calorie count is also a plus if you're trying to balance both carbs and calories.
What I Didn’t Love: The sauce is a bit thin, so if you prefer a thicker marinara, this one might not be for you. The flavor is also milder, so you might need to jazz it up with some extra garlic or spices.
7. Classico Riserva Marinara
Nutritional Information (per ½ cup serving):
- Calories: 50
- Carbs: 6g
- Fiber: 2g
- Net Carbs: 4g
- Fat: 1.5g
- Protein: 2g
What I Loved: Classico Riserva is a great budget-friendly option. It has a nice, well-rounded flavor, and the ingredients list is refreshingly simple. It’s not as heavy on the olive oil as some of the others, so if you prefer a lighter, less fatty sauce, this one’s for you. The tomato flavor is bright and fresh, and it’s very versatile.
What I Didn’t Love: It’s not as rich or flavorful as the more expensive brands, and the lower fat content means it doesn’t have that luxurious mouthfeel you get with more oil-heavy sauces. Still, it’s a solid choice for the price.
8. Cucina Antica Tomato Basil Sauce
Nutritional Information (per ½ cup serving):
- Calories: 70
- Carbs: 5g
- Fiber: 1g
- Net Carbs: 4g
- Fat: 4g
- Protein: 2g
What I Loved: Cucina Antica is all about fresh ingredients. The sauce has a bright, tangy tomato flavor that feels homemade, and the basil gives it a nice herbal note. It’s also thick enough to cling to your keto pasta nicely. The overall taste is clean and flavorful, making it a great base for various dishes.
What I Didn’t Love: The carb count is on the higher side compared to some other keto sauces, so you’ll want to keep an eye on portion sizes. Additionally, if you’re sensitive to the taste of basil, this sauce might be a bit overpowering.
9. Bertolli Organic Tomato & Basil
Nutritional Information (per ½ cup serving):
- Calories: 70
- Carbs: 4g
- Fiber: 2g
- Net Carbs: 2g
- Fat: 3g
- Protein: 2g
What I Loved: Bertolli Organic Tomato & Basil offers a well-balanced, smooth tomato flavor with a nice hint of basil. It’s organic and free from added sugars, which is a big win.
The sauce has a rich texture that pairs beautifully with any low-carb pasta alternative. The net carbs are among the lowest of the sauces I tried, which is great for maintaining ketosis.
What I Didn’t Love: The flavor, while pleasant, is somewhat standard and might lack the complexity you get from more artisanal sauces. It’s also a bit thinner than some of the heartier options, so it may not be ideal if you like a thicker sauce.
10. Siroc Marinara
Nutritional Information (per ½ cup serving):
- Calories: 80
- Carbs: 5g
- Fiber: 2g
- Net Carbs: 3g
- Fat: 5g
- Protein: 2g
What I Loved: Siroc Marinara has a rich, homemade taste with a good balance of tomato and Italian herbs. It’s made with all-natural ingredients and no added sugars, which is always a plus.
The sauce has a nice consistency that works well with both meat-based and vegetarian dishes, and the taste is robust without being overly spicy.
What I Didn’t Love: The flavor can be a bit too acidic for some tastes, and the sauce can be slightly oily, which might not appeal to everyone. Also, it’s on the pricier side, so it’s not the most budget-friendly option out there.
How to Make Your Own Keto Spaghetti Sauce at Home
Making your own keto spaghetti sauce can be incredibly rewarding and is often more cost-effective than buying pre-made sauces. Plus, you have complete control over the ingredients, so you can tailor it to your taste preferences and dietary needs. Here’s a simple recipe to get you started:
Ingredients:
- 1 can (28 oz) of no-sugar-added crushed tomatoes
- 2 tbsp extra virgin olive oil
- 1 medium onion, finely chopped
- 3 cloves garlic, minced
- 1 tsp dried basil
- 1 tsp dried oregano
- 1/2 tsp dried thyme
- Salt and pepper to taste
- 1 pinch of erythritol or a few drops of stevia (optional, for added sweetness)
Instructions:
- Sauté the Aromatics: Heat the olive oil in a large pan over medium heat. Add the chopped onion and sauté until it’s translucent and soft, about 5 minutes. Add the minced garlic and cook for an additional 1-2 minutes, until fragrant.
- Add Tomatoes and Seasonings: Pour in the crushed tomatoes and stir to combine with the onions and garlic. Add the dried basil, oregano, thyme, salt, and pepper. If you prefer a touch of sweetness, add a pinch of erythritol or a few drops of stevia at this point.
- Simmer: Reduce the heat to low and let the sauce simmer for 20-30 minutes, stirring occasionally. This allows the flavors to meld together and the sauce to thicken. If the sauce gets too thick, you can add a bit of water or broth to reach your desired consistency.
- Adjust Seasonings: Taste the sauce and adjust the seasonings as needed. You can add more salt, pepper, or herbs based on your preferences.
- Serve or Store: Serve your homemade keto spaghetti sauce over your favorite low-carb pasta or store it in an airtight container in the refrigerator for up to a week. It can also be frozen for up to three months.
There you have it—my top 10 keto spaghetti sauces and a simple recipe for making your own at home. Whether you choose a store-bought option or decide to go homemade, there’s no need to miss out on the comfort of a good pasta dish while sticking to your keto lifestyle. Enjoy your low-carb pasta adventures!