This thick, rich Low Sodium Tomato Sauce Recipe is made with unsalted crushed tomatoes, fresh basil, and balsamic vinegar, ready in 40 minutes. The sweetness of the cooked onions balances out the acidity as the sauce simmers down to a deep red finish. I rely on this base for almost every pasta dish I make at home.
Try More Sauce Recipes:
Jump to RecipeWhy You Will Love This Low Sodium Tomato Sauce Recipe:
- Pure Tomato Flavor: Without heavy salt masking the ingredients, the natural sweetness and acidity of the tomatoes become the star of the dish.
- Heart-Healthy & Balanced: This recipe is ideal for managing blood pressure or reducing water retention while still enjoying a rich, savory pasta sauce.
- Herb-Forward Aroma: By leaning on fresh basil, oregano, and toasted garlic, the sauce achieves a deep “umami” profile that satisfies the palate without sodium.
- No Hidden Additives: Homemade sauce allows you to skip the preservatives and hidden sugars often found in store-bought jars.
- Perfect for Meal Prep: It freezes beautifully and tastes even better the next day as the flavors of the garlic and onions meld together.
- Endless Versatility: This serves as a clean base for everything from classic spaghetti and shakshuka to homemade pizza and vegetable stews.

Low Sodium Tomato Sauce Ingredients
- 2 tablespoons olive oil
- 1 medium yellow onion, finely chopped
- 4 cloves garlic, minced
- 1 (28-ounce) can no-salt-added crushed tomatoes
- 1 teaspoon dried oregano
- 1/2 teaspoon black pepper
- 1/4 cup fresh basil leaves, chopped
- 1 tablespoon balsamic vinegar
How To Make Low Sodium Tomato Sauce
- Saute the aromatics: Heat olive oil in a medium saucepan over medium heat, then cook the chopped onions for 5 minutes until soft. Add the minced garlic and cook for 1 more minute until fragrant.
- Add the tomatoes: Pour in the no-salt-added crushed tomatoes, dried oregano, and black pepper. Stir well and bring the mixture to a gentle boil.
- Simmer the sauce: Reduce the heat to low, cover partially with a lid, and let it simmer for 30 minutes. Stir occasionally to prevent sticking at the bottom.
- Finish with flavor: Remove the pan from the heat. Stir in the fresh chopped basil and the balsamic vinegar just before serving.

Recipe Tips
- Check your labels: Always verify that your canned tomatoes say no salt added since standard cans are loaded with sodium.
- Cook the onions slowly: Giving the onions time to soften brings out their natural sugars, which balances the acidic tomatoes.
- Add vinegar at the end: Stirring in the balsamic vinegar off the heat preserves its sharp, sweet tang.
What To Serve With Low Sodium Tomato Sauce?
This vibrant sauce pairs perfectly with whole-grain pasta or zucchini noodles for a light, heart-healthy meal. For added protein, serve it over baked chicken breast or use it as a base for poached eggs in a low-sodium shakshuka. To enhance the meal without adding salt, offer a side of roasted Mediterranean vegetables or a fresh arugula salad with lemon vinaigrette. For dipping, a piece of crusty artisan bread drizzled with high-quality olive oil is the perfect accompaniment.

How To Store Leftovers Low Sodium Tomato Sauce?
Keep leftover sauce in an airtight glass container in the fridge for up to 5 days. You can also freeze it in freezer-safe bags for up to 3 months for an easy make-ahead option.
How To Reheat Leftovers Low Sodium Tomato Sauce?
Stovetop (Best for Flavor): Pour the sauce into a small saucepan over medium-low heat. Simmer for 5–8 minutes, stirring occasionally. If the sauce has thickened too much in the fridge, add a tablespoon of water or unsalted broth to restore its silky consistency without adding sodium.
Microwave (Quickest): Place the sauce in a microwave-safe bowl and cover with a vented lid or paper towel to prevent splatters. Heat on high for 1 minute, stir well, and continue in 30-second intervals until steaming. Stirring is key to ensuring the sauce heats evenly throughout.
FAQs
Can I use fresh tomatoes instead of canned?
Yes, you can use fresh Roma tomatoes. You will need to blanch, peel, and crush about 2 pounds of them before starting the cooking process.
Why does my sauce taste bitter?
Sometimes tomatoes are naturally more acidic or bitter. You can add a finely grated carrot during the onion stage to add natural sweetness.
Can I make this spicy?
Absolutely. Just add half a teaspoon of crushed red pepper flakes along with the garlic to give the sauce a nice kick.

More Sauce Recipes:
Low Sodium Tomato Sauce Recipe Nutrition Fact
- Calories: 60 kcal
- Total Fat: 3.5 g
- Saturated Fat: 0.5 g
- Cholesterol: 0 mg
- Sodium: 15 mg
- Total Carbohydrate: 6 g
- Protein: 1 g
Low Sodium Tomato Sauce Recipe
Course: Dinner, Lunch, Sauce, SidesCuisine: AmericanDifficulty: Easy8
servings10
minutes30
minutes60
kcal40
minutesLow Sodium Tomato Sauce Recipe features a thick, rich base using unsalted crushed tomatoes and balsamic vinegar in just 40 minutes. Try this vibrant, fresh-tasting sauce for a healthy weeknight pasta dinner.
Ingredients
2 tablespoons olive oil
1 medium yellow onion, finely chopped
4 cloves garlic, minced
1 (28-ounce) can no-salt-added crushed tomatoes
1 teaspoon dried oregano
1/2 teaspoon black pepper
1/4 cup fresh basil leaves, chopped
1 tablespoon balsamic vinegar
Directions
- 1. Saute the aromatics: Heat olive oil in a medium saucepan over medium heat, then cook the chopped onions for 5 minutes until soft. Add the minced garlic and cook for 1 more minute until fragrant.
- 2. Add the tomatoes: Pour in the no-salt-added crushed tomatoes, dried oregano, and black pepper. Stir well and bring the mixture to a gentle boil.
- 3. Simmer the sauce: Reduce the heat to low, cover partially with a lid, and let it simmer for 30 minutes. Stir occasionally to prevent sticking at the bottom.
- 4. Finish with flavor: Remove the pan from the heat. Stir in the fresh chopped basil and the balsamic vinegar just before serving.
