Preparation Time: 10 minutes
Cooking Time: 40 minutes
Servings: 4
If you thought comfort food was off-limits on a keto diet, think again. This Keto Tomato Basil Soup is a low-carb twist on a classic favorite—rich, velvety, and deeply flavorful thanks to oven-roasted tomatoes and garlic, blended to perfection with heavy cream and savory chicken broth. At just 5.5g net carbs per serving, it’s a smart, satisfying meal that supports your keto goals without sacrificing taste.
Tomatoes may raise eyebrows in keto circles due to their natural sugar content, but in moderation, they provide vital nutrients and antioxidants—especially lycopene, which has been shown to reduce oxidative stress. Combined with healthy fats from olive oil and cream, this soup offers a filling and flavorful keto-friendly meal.
Ingredients
- ¼ cup olive oil
- ½ cup heavy cream
- 1 lb fresh tomatoes (roma or vine-ripened work best)
- 4 cups chicken broth, divided
- 4 cloves garlic, fresh
- Sea salt and pepper, to taste
Instructions
- Preheat your oven to 400°F (204°C) and line a baking sheet with foil.
- Remove the cores from the tomatoes and place them on the baking sheet along with the garlic cloves.
- Drizzle with olive oil, sprinkle with salt and pepper, and roast for 30 minutes.
- Transfer the roasted tomatoes and garlic (including pan juices) to a blender with 2 cups of chicken broth. Blend until smooth.
- Strain the blended mixture into a large saucepan or soup pot.
- Add the remaining 2 cups of broth and the heavy cream. Whisk until fully combined.
- Simmer over medium heat for 10 minutes, adjusting salt and pepper to taste.
- Serve hot, optionally garnished with fresh basil or a drizzle of olive oil.
Nutrition Facts (Per Serving)
- Calories: 225
- Fats: 20 g
- Carbohydrates: 5.5 g
- Proteins: 6.5 g
Why Tomato Basil Soup Works on Keto
While tomatoes are slightly higher in carbs than leafy greens, they’re still acceptable in keto cooking when used moderately. Their fiber-rich composition and antioxidant content make them valuable in a low-carb lifestyle. The added cream and olive oil not only enhance the flavor but also increase fat content, which is crucial for maintaining ketosis and satiety.
According to research published in the European Journal of Clinical Nutrition, keto diets rich in fat and moderate in protein can help improve metabolic markers and aid in weight loss. This soup fits perfectly into that framework.
Serving Suggestions
Pair it with keto-friendly cheesy garlic bread made from almond flour or serve as a starter before a hearty keto steak or chicken dish. You can even freeze leftovers for a quick, nourishing meal on a busy night.