Keto Tomato Soup

Tasty and simple to make, this creamy keto tomato soup is definitely worth adding to your diet, especially days when you prefer something light and comforting. As packed with 4 grams of net carbs and 2 grams of fiber per serving of 149 calories and a good source of Vitamin C and K, tomatoes are not only friendly to your low-carb diet but also good for your health.

Aside from salad, pizza crust topping, stir-fried and grilled with other fresh vegetables, tomatoes also serve in soup and tastes good, too. If you get interested, give the following recipe for keto tomato soup a try.

Keto Tomato Soup

Recipe by Anna SmallingCourse: SoupsCuisine: AmericanDifficulty: Easy

Servings

6

servings

Prep time

2

minutes

Cooking time

10

minutes

Calories

258

kcal

Ingredients

• 1 can (28 ounces) whole plum tomatoes

• 2 cups filtered water

• 8 ounces mascarpone cheese

• 2 tbsp granulated erythritol sweetener

• 1.5 tsp coarse kosher salt

• 1/2 tsp onion powder

• 1/4 tsp garlic powder

• 1 tbsp butter

• 1 tsp apple cider vinegar

• 1/4 tsp dried basil leaves

• 1/4 cup prepared basil pesto, plus more for garnish if desired

Directions

• In a medium saucepan, combine tomatoes, water, salt, onion powder and garlic powder. Bring to a boil over medium-high heat and simmer for 2 minutes.
• Remove from heat, place into a food processor and blend until smooth and creamy. Bring the soup back to the pan.
• Add butter and mascarpone cheese. Cook for about 2 minutes over low heat, until the cheese is melted and creamy; stirring constantly.
• Remove from heat and stir in the sweetener, apple cider vinegar, dried basil, and pesto. Serve warm.

Notes

• For the leftovers, store them in an airtight container and keep in the refrigerator. Make sure that you eat them within 5 days.

FAQ

Is keto tomato soup suitable for a low-carb or ketogenic diet?
Yes. This keto tomato soup is designed to be low in net carbs while still delivering a rich, creamy texture, making it suitable for ketogenic and low-carb diets when enjoyed in proper portions.

How many carbs are in this keto tomato soup?
Each serving contains approximately 4 grams of net carbs and 2 grams of fiber, which fits well within daily carb limits for most keto eaters.

Can I use fresh tomatoes instead of canned plum tomatoes?
Yes. Fresh tomatoes can be used, but they should be peeled and cooked longer to achieve a smooth texture. Keep in mind that carb content may vary slightly depending on tomato variety.

What can I substitute for mascarpone cheese?
You can substitute mascarpone with cream cheese or heavy cream for a similar creamy consistency while keeping the soup keto-friendly.

Is this soup freezer-friendly?
Yes. Keto tomato soup can be frozen in airtight containers for up to 2 months. Allow it to thaw in the refrigerator and reheat gently to avoid separation.

Does this recipe taste sweet?
No. The small amount of erythritol balances the acidity of the tomatoes without making the soup sweet. It enhances flavor rather than overpowering it.

Can I make this soup dairy-free?
Yes. You may replace mascarpone and butter with full-fat coconut cream and coconut oil, though the flavor profile will be slightly different.

Is this soup good for meal prep?
Yes. This soup reheats well and can be prepared in advance, making it suitable for meal prep and quick lunches or dinners.

Can I add protein to this soup?
Yes. Cooked shredded chicken, shrimp, or even a swirl of heavy cream-based protein can be added to increase satiety while keeping it low-carb.

How should leftovers be stored?
Store leftovers in an airtight container in the refrigerator and consume within 3–4 days for best flavor and freshness.