• 2 tablespoons olive oil
  

• 4 cloves garlic, minced
  

• 1 small onion, finely chopped
  

• 2 pounds fresh ripe tomatoes (Roma or San Marzano tomatoes work best)
  

• 1 tablespoon tomato paste (no sugar added)
  

• 1 teaspoon dried oregano
  

• 1 teaspoon dried basil
  

• ½ teaspoon salt (adjust to taste)
  

• ¼ teaspoon black pepper
  

• ¼ teaspoon crushed red pepper flakes (optional)
  

• 1 teaspoon balsamic vinegar (optional)
  

• Fresh basil, chopped (for garnish, optional)
  

Instructions

1. Prepare the tomatoes: Bring a large pot of water to a boil. Score a small "X" on the bottom of each tomato. Blanch the tomatoes for 30–60 seconds, then transfer them to an ice bath. Once cooled, peel off the skins, remove the cores, and chop the tomatoes or crush them by hand.
   

2. Heat the olive oil in a medium saucepan over medium heat.
   

3. Add the minced garlic and chopped onion. Sauté for 3–4 minutes until fragrant and translucent.
   

4. Stir in the tomato paste and cook for 1–2 minutes to enhance the flavor.
   

5. Add the fresh chopped tomatoes along with their juices. Stir in oregano, basil, salt, pepper, and red pepper flakes if using.
   

6. Bring to a simmer, then reduce heat to low. Simmer uncovered for 30–40 minutes, stirring occasionally, until the sauce thickens.
   

7. For a smoother texture, use an immersion blender or transfer to a blender and purée to desired consistency.
   

8. Stir in balsamic vinegar (if using), and adjust seasoning to taste.
   

9. Serve warm over low-carb and protein-rich pasta or veggie pasta noodles, garnished with fresh basil if desired.
   

Storage Information

Proper storage ensures that our low-carb pasta sauce recipe maintains its freshness and rich flavor, whether you're using it for marinara, keto-friendly pasta sauce, or a sugar-free marinara option. Here’s how to store and reheat it effectively.

Refrigeration

Store the sauce in an airtight container in the refrigerator for up to 5 days. This method keeps the sauce’s robust flavors intact and ready for quick meals like zucchini noodles or homemade keto pasta.

Freezing

Freeze the sauce in portion-sized, freezer-safe containers or bags. This no-added-sugar high protein pasta sauce for vegetarian meals freezes exceptionally well for up to 6 months. Leave a little room at the top, as liquids expand when frozen. This ensures you can defrost just what you need for dishes like keto pizza or bolognese.

Reheating

Reheat the sauce over low heat on the stovetop, stirring occasionally. Add a splash of water if it thickens during storage. For microwave reheating, cover with a damp paper towel to prevent splatters and retain moisture.

Conclusion

Crafting your own low-carb pasta sauce is a game-changer for anyone seeking bold flavors without compromising on health. By taking control of the ingredients, we can enjoy a rich and satisfying sauce that pairs perfectly with a variety of dishes. Whether you're meal prepping or whipping up a quick dinner, this recipe fits seamlessly into busy lifestyles while supporting your low-carb goals.

With its versatility and ease of storage, this sauce is a must-have staple in any kitchen. Let's embrace the joy of homemade cooking and elevate our meals with a sauce that's as wholesome as it is delicious.

Frequently Asked Questions

Is this low-carb pasta sauce suitable for a keto diet?

Yes, this low-carb pasta sauce is keto-friendly. It's free from added sugars, preservatives, and inflammatory oils, ensuring it fits perfectly into a keto diet while delivering bold Italian flavors.

Can I use this sauce for dishes other than pasta?

Absolutely! This sauce is versatile and works well for pizza, zucchini noodles, spaghetti squash, and other low-carb dishes, making it ideal for a variety of keto-friendly meals.

What kind of tomatoes should I use for the sauce?

Opt for canned whole peeled tomatoes, specifically San Marzano tomatoes, for the best flavor and low carb count. Alternatively, fresh Roma tomatoes are a fantastic choice if you prefer starting from scratch.

How long can I store this homemade pasta sauce?

The sauce can be stored in an airtight container in the refrigerator for up to 5 days. For longer storage, freeze it in portion-sized containers for up to 6 months.

How should I reheat the sauce?

Reheat the sauce gently over low heat on the stovetop or use the microwave. This ensures the sauce retains its flavors and remains delicious for quick, healthy meals.

What makes this sauce better than store-bought options?

This homemade sauce avoids added sugars, preservatives, and unhealthy oils found in many store-bought options. Plus, you have complete control over the ingredients for a wholesome, flavorful result.

Can I customize the flavors of this sauce?

Yes, you can adjust the seasoning, add fresh herbs like basil or oregano, or incorporate extra spices to customize the sauce to your taste preferences.

Is this sauce gluten-free?

Yes, this low-carb pasta sauce is entirely gluten-free, making it suitable for individuals with gluten sensitivities or those following a gluten-free diet.

Why is low-carb sauce important for a healthy lifestyle?

Low-carb sauces help reduce unnecessary carbs and sugars in meals, supporting weight management, balanced blood sugar, and overall health without sacrificing flavor.

Can I make this sauce in advance for meal prep?

Definitely! This sauce is perfect for meal prep. Make a batch ahead of time, store it properly, and reheat as needed for quick, healthy, and tasty meals during the week.