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    Home » Soups

    Keto Tomato and Basil Soup

    Published: Mar 9, 2012 · Updated: Nov 30, 2022 by Angela Coleby · This post may contain affiliate links · This blog generates income via ads ·

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    Gluten FreeDairy FreeNut FreeEgg FreeLow CarbVegetarianVeganPaleo

    An easy keto tomato soup with basil is a delicious bowl of comfort food. Fresh tomatoes are roasted for a deep flavour and enhanced with fresh basil.

    I've kept this soup as simple as possible with just tomatoes, garlic and basil. I omitted the onions to keep the carbs down and the flavours as simple as possible. The result is a hearty tomato taste enhanced by the basil. Feel free to use this simple soup as a base for a more creative low carb tomato soup by adding your own flourish.

    tomato soup

    Are tomatoes Keto?

    Although tomatoes are thought to be a vegetable, botanically they are a fruit and are a keto friendly fruit. As a fruit they have more carbs than berries but less carbs then most fruit. The carbs in this tomato soup are 7g net per serving.

    Fresh tomatoes are the best option to use for a keto tomato recipe as tomato-based products can have sugar in them. As with anything you purchase in a jar or tin, read the label carefully.

    What to serve with roasted tomato soup

    Enjoy a bowl of this tomato soup served with a low carb grilled cheese sandwich or a savoury cheese muffin for a keto version of the classic sandwich and soup combination.

    tomato basil soup

    How to make keto tomato soup

    The main ingredients in this homemade tomato soup are:

    • Fresh tomatoes
    • Garlic cloves
    • Fresh basil
    • Chicken or vegetable stock

    Make sure you use ripe, succulent tomatoes to give this soup the rich flavour it deserves.   The roasting of the tomatoes brings out their flavour and add some basil and voila! you have got yourself a tasty and satisfying soup.

    Ingredient Swaps & Tips

    • Canned tomatoes could be substituted for the fresh, but check the sugar content of the tin before use. If you use tinned, you can skip the roasting of the tomatoes and gently cook the garlic in the saucepan.
    • Fresh cherry or plum tomatoes can be used.
    • For an extra creamy low carb tomato soup add heavy cream or coconut cream before blending.
    • Parmesan would be a delicious addition to the soup for flavour and a thicker texture.
    • If you don't have fresh basil, a couple of teaspoons of pesto can be used.

    Can you freeze keto tomato soup?

    You can freeze this soup easily as it has no dairy in it. Ensure that you thaw it thoroughly and gently heat it on the stove. I would not recommend you microwave the soup after defrosting as it needs a gently heat after freezing.

    tomato basil soup

    Other low carb soup recipes

    Celery & Basil Soup

    Curried Cauliflower Soup

    Broccoli & Tomato Soup

    Zucchini & Lemon Soup

    Cream of Watercress Soup

    This tomato soup recipe was originally published in March 2012. I've tweaked the recipe, updated the photos and content.

    low carb tomato soup

    Keto Tomato Basil Soup

    Angela Coleby
    An easy roasted tomato soup with basil.
    Print Recipe Pin Recipe
    Prep Time 15 mins
    Cook Time 38 mins
    Total Time 53 mins
    Course Soup
    Cuisine Vegetarian
    Servings 4 servings
    Calories 131 kcal

    Ingredients
      

    • 450 g tomatoes
    • 4 cloves garlic peeled
    • 3 tablespoons olive oil
    • 4 cups vegetable OR chicken stock
    • 2 tablespoons Fresh basil
    • 1 teaspoon salt
    • 1 teaspoon black pepper

    Instructions
     

    • Preheat the oven to 200C/400F degrees.
    • Cut the tomatoes in half.
    • Place the tomatoes and garlic on a baking tray (I line mine with parchment paper for ease of roasting and cleaning the tray).
    • Season with half of the salt & pepper and roast for 30 minutes.
    • Remove from the oven and place in a saucepan, along with any juices in the tin.
    • Add the stock, bring to the boil and simmer for 10 minutes.
    • Season with the remaining salt & pepper and add the fresh basil.
    • Blend the soup until smooth and adjust for any seasoning.
    • Serve, slurp and enjoy!

    Notes

    Makes 4 servings of 1 cup each serving.
    The number of tomatoes were not counted, only weighed
    The net carbs will be the total carb count minus the fibre count. Carb count excludes sugar alcohols.
    Any nutritional analysis on the website is based on an estimate, calculated by http://nutritiondata.self.com from the individual ingredients in each recipe. Variations may occur for various reasons, including product availability and food preparation. We make no representation or warranty of the accuracy of this information.

    Nutrition

    Serving: 1servingCalories: 131kcalCarbohydrates: 9gProtein: 1gFat: 11gFiber: 2g
    Have you tried this recipe? Leave a review or take a picture and share it on InstagramMention @Divalicious_Recipes or tag #divaliciousrecipes
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    Hi, I'm Angela ! I'm the creator behind all the tasty low carb & gluten free recipes at Divalicious Recipes. I live in sunny St Lucia with the Chief Taster and my dogs & cats.

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