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Ladies hand with a spoon of tomato soup next to another bowl of soup and a blue and white cloth

Low Carb Low Calorie Homemade Tomato Soup

Ready in 30 minutes, you won't even miss the carbs, calories, or the cream in this Low Carb Low-Calorie Homemade Tomato Soup.
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Course: Soup
Cuisine: American
Keyword: comfort food, keto friendly, low calorie, Low carb, vegan friendly, vegetarian
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Servings: 4 6-ounce servings
Author: Laura Franco

Ingredients 

  • 4-6 Roma tomatoes
  • 1 TBS extra virgin olive oil
  • 1/2 tbsp minced garlic
  • 1 teaspoon salt
  • 1/2 teaspoon pepper
  • 1 14.5 ounce can of whole, peeled San Marzano tomatoes
  • 1 cup low sodium chicken broth substitution: vegetable broth
  • 3 TBS fresh thyme substitution: 1 TBS dried thyme
  • 4 fresh Thyme sprigs for garnish

Instructions

  • Preheat oven to 375°
  • Slice the tomatoes into quarters.
  • Toss the tomatoes in the olive oil, salt, and pepper.
  • Place the tomatoes onto a cookie sheet and add salt and pepper.
  • Roast them for 15 minutes.
  • When the tomatoes are finished roasting, pour the entire pan of tomatoes (with juices) into a blender.
  • Add the can of whole tomatoes (juices included).
  • Blend until smooth.
  • Pour the tomato soup, from the blender, into a stove-top pan.
  • Add the chicken broth and thyme.
  • Bring to a boil, reduce to a simmer and cook for 10-15 minutes.
  • Garnish with fresh thyme sprigs (optional).

Notes

Krazy Kitchen Mom Tips
  • I recommend buying and using peeled whole canned tomatoes for this recipe. And of course, I recommend using San Marzano canned tomatoes if you can find them.
  • When making any recipe using canned or fresh tomatoes, add a teaspoon of sugar to cut down on the acidity of the tomatoes.
  • We like this soup just as much on the second day as the first. It can be stored in an airtight container in the refrigerator for 3-4 days.
  • This soup also freezes well. Make sure it's room temperature and freeze it in an airtight container for 3 months. Thaw in the refrigerator for 24 hours before reheating.