Low Carb Vegetable Tomato Sauce

Elevate your meals with this hearty and flavorful Low Carb Vegetable Tomato Sauce, a versatile recipe perfect for keto and low-carb lifestyles. Packed with nutrient-dense ingredients like zucchini, red bell pepper, and mushrooms, this sauce gets its rich, tangy base from canned crushed tomatoes (with no added sugar) and an aromatic blend of Italian seasoning and garlic. Easy to prepare in just 45 minutes, it’s a healthy, veggie-loaded alternative to traditional pasta sauces. Serve it over zoodles, spaghetti squash, or as a vibrant topping for grilled proteins. Whether you're meal prepping or crafting a fresh, wholesome dinner, this low-carb tomato sauce is the perfect combination of simplicity and taste.

Nutriscore Rating: 79/100

Prep Time:15 mins

Cook Time:30 mins

Total Time:45 mins

Servings: 6

Ingredients

• 2 tablespoons olive oil
• 1 medium yellow onion, finely chopped
• 3 cloves garlic, minced
• 1 medium zucchini, diced
• 1 medium red bell pepper, diced
• 1 cup mushrooms, finely chopped
• 28 ounces canned crushed tomatoes (no added sugar)
• 0.5 cup water or vegetable broth
• 1 teaspoon dried Italian seasoning
• 0.25 teaspoon crushed red pepper flakes (optional)
• 0.5 teaspoon salt
• 0.25 teaspoon ground black pepper
• 2 tablespoons fresh basil, chopped (optional, for garnish)

Directions

Step 1

Heat the olive oil in a large skillet or pot over medium heat.

Step 2

Add the finely chopped onion and sauté for 3-4 minutes until it starts to soften and become translucent.

Step 3

Stir in the minced garlic and cook for 1 additional minute, stirring frequently to prevent burning.

Step 4

Add the diced zucchini, red bell pepper, and chopped mushrooms. Cook for 5-7 minutes, stirring occasionally, until the vegetables begin to soften.

Step 5

Pour in the canned crushed tomatoes and water or vegetable broth. Stir well to combine.

Step 6

Add the dried Italian seasoning, crushed red pepper flakes (if using), salt, and ground black pepper. Stir thoroughly.

Step 7

Bring the mixture to a gentle simmer, then reduce the heat to low. Cover the pot and let the sauce cook for 20 minutes, stirring occasionally to prevent sticking.

Step 8

Taste the sauce and adjust seasoning as necessary. If desired, garnish with freshly chopped basil before serving.

Step 9

Serve over zoodles, spaghetti squash, or use as a flavorful low-carb base for your favorite dishes.

Nutrition Facts

Serving size	(1585.5g)

Amount per serving	% Daily Value*
Calories	602.6

Total Fat 31.8g	0%
Saturated Fat 4.8g	0%
Polyunsaturated Fat 2.7g
Cholesterol 0mg	0%
Sodium 2676.9mg	0%
Total Carbohydrate 72.7g	0%
Dietary Fiber 19.6g	0%
Total Sugars 41.2g
Protein 18.8g	0%

Vitamin D 14IU	0%
Calcium 242.9mg	0%
Iron 8.3mg	0%
Potassium 3003.6mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 43.9%

Protein: 11.5%

Carbs: 44.6%