This Low-Carb Tomato Basil Soup is a silky, cozy bowl of winter comfort food made with simple pantry staples. It’s ideal for busy families and beginners looking for a clean eating recipe that comes together in minutes. The creamy mascarpone gives it richness without raising carbs or calories, making it a great low-calorie meal option. Enjoy it for quick weeknight dinners, winter lunches, or effortless meal prep dinners.

• Prep Time: 2 minutes
• Cook Time: 10 minutes
• Total Time: 12 minutes
• Servings: 4
• Category: Soup, Dinner, Low-Carb
• Cuisine: American

Ingredients

• 1 can (28 oz) whole plum tomatoes (San Marzano preferred)
• 2 cups filtered water
• 1.5 teaspoons coarse kosher salt
• 1/2 teaspoon onion powder
• 1/4 teaspoon garlic powder
• 1 tablespoon butter
• 8 ounces mascarpone cheese
• 2 tablespoons granulated erythritol sweetener
• 1 teaspoon apple cider vinegar
• 1/4 teaspoon dried basil leaves
• 1/4 cup prepared basil pesto, plus more for garnish if desired

Ingredient Notes

• Mascarpone makes the soup extra creamy while keeping it low-carb and lower in calories.
• Crushed tomatoes can replace whole tomatoes if needed.
• Any low-carb sweetener works in place of erythritol.
• Store-bought or homemade pesto both add fresh basil flavor.

How to Make Low-Carb Tomato Basil Soup

1. Combine and Heat the Base
   Add the canned tomatoes, water, salt, onion powder, and garlic powder to a medium saucepan. Bring to a boil over medium-high heat, then simmer for 2 minutes.
2. Blend Until Smooth
   Remove the pot from the heat and puree the mixture with an immersion blender until smooth. If using a traditional blender, blend carefully and return the soup to the pan.
3. Add Creaminess
   Set the saucepan back over low heat. Stir in the butter and mascarpone until fully melted and creamy, about 2 minutes.
4. Season and Finish
   Remove from the heat and stir in the erythritol, apple cider vinegar, dried basil, and pesto. Taste and adjust seasoning as needed.
5. Serve
   Ladle the soup into bowls, garnish with extra pesto if desired, and enjoy warm. This makes an excellent winter comfort food option and a great low-calorie meal for clean eating.

Why You’ll Love This Recipe

• Ready in about 10 minutes, perfect for fast meal prep dinners.
• Creamy texture while still fitting into a clean eating lifestyle.
• Cozy winter comfort food without the heavy calories.
• Family-friendly flavors even picky eaters enjoy.
• Uses everyday pantry ingredients for convenience.

Variations & Substitutions

• Replace mascarpone with cream cheese for a tangier version.
• Add red pepper flakes for a spicy twist.
• Use Italian seasoning instead of dried basil.
• Stir in cooked shredded chicken to boost protein.
• Swap water for vegetable broth to increase depth of flavor.

Storage & Reheating

Store leftovers in the fridge in an airtight container for up to 5 days.
Freeze for up to 3 months in freezer-safe containers.
Reheat gently on the stovetop over low heat or microwave in 1-minute intervals, stirring between each.

What to Serve With Low-Carb Tomato Basil Soup

Pair it with a fresh green salad, roasted vegetables, low-carb garlic bread, or grilled chicken for a complete clean eating meal. It also works well as part of meal prep dinners throughout the week.

FAQ

Can I use cream cheese instead of mascarpone?
Yes, cream cheese gives a similar creamy texture with a slightly tangier flavor and works well in low-carb and low-calorie meals.

Can I make this soup ahead of time?
Definitely. It reheats beautifully and is perfect for meal prep dinners, keeping its creamy texture for days.

How can I make this soup lighter?
Use less mascarpone or replace part of it with unsweetened almond milk. It will still taste delicious while fitting well into clean eating and low-calorie meals.

How do I thicken the soup?
Let it simmer a few extra minutes after blending to reduce liquid, or stir in a bit more mascarpone for a richer texture.

Nutrition (Estimated)

Calories: 258
Protein: 4g
Carbs: 6g
Fat: 23g
Fiber: 3g
Sugar: 3g

Nutrition facts are estimated using online tools and may vary based on your ingredients and preparation. For precise dietary advice, please consult a nutrition professional.