Onion-Tomato Soup

Prep: 10 min Cook: 45 min Serves: 4 Cuisine: American

A comforting onion-tomato soup blending sweet onions with tangy stewed tomatoes, perfect for cozy meals and served best with crusty French bread.

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Ingredients

  • 2 large sweet onions
  • 1/2 cup butter
  • 2 cans stewed tomatoes
  • 3 cans (10 1/2 oz.) broth
  • 1/2 teaspoon basil
  • 1/2 teaspoon salt
  • 1/2 teaspoon pepper

Instructions

  1. Peel and thinly slice the onions.
  2. Saute the onions in butter in a large saucepan until translucent.
  3. Add the stewed tomatoes, broth, basil, salt, and pepper to the saucepan.
  4. Cook over low heat for 45 minutes, then serve.

Tips & Substitutions

For a sweeter flavor, consider using Vidalia onions instead of regular sweet onions. If you don't have stewed tomatoes, diced tomatoes can work, just add a bit of sugar to balance the acidity. To enhance the taste, a splash of balsamic vinegar or a sprinkle of Parmesan cheese can elevate this simple soup. For a heartier version, add some cooked beans or lentils, which are great in vegetarian recipes.

Serving Suggestions

This Onion-Tomato Soup pairs beautifully with a crusty bread or a side salad, making it a perfect light meal. Consider serving it with a dollop of sour cream or a sprinkle of fresh herbs like basil or parsley on top. It also complements hearty dishes such as roasted vegetables or a refreshing Winter Sauerkraut Salad for a balanced spread.

Storage & Reheating

Store any leftover soup in an airtight container in the refrigerator for up to 3 days. To reheat, gently warm it on the stove over low heat, stirring occasionally. You can also microwave it in a microwave-safe bowl, covered loosely, for about 2-3 minutes or until heated through. If the soup thickens, add a little broth or water to reach your desired consistency.

Nutrition & Diet Analysis (per serving)

Each serving of Onion-Tomato Soup contains roughly 167 calories, with 6g protein, 36g carbohydrates, and 2g fat. It is an excellent source of vitamin C (215% of the Daily Value), dietary fiber (35% of the Daily Value), and potassium (21% of the Daily Value), and a good source of protein and iron. Note that it is relatively high in sodium, at 1823mg per serving (79% of the Daily Value).

167 kcal 8% DV
Protein Fat Carbs

Macronutrients

Protein 6g 12% DV
Total Fat 1.8g 2% DV
Carbs 35.7g 13% DV
Fiber 9.9g 35% DV
Sugar 20.6g 41% DV

Electrolytes

Sodium 1823.1mg 79% DV
Potassium 967.7mg 21% DV
Cholesterol 1.9mg 1% DV

Vitamins & Minerals

Vitamin A 74.7mcg 8% DV
Vitamin C 193.8mg 100% DV
Calcium 95.7mg 7% DV
Iron 1.9mg 11% DV
Diet fit High-fiber Under 400 cal Low-fat
Contains Milk

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I freeze the soup for later?

Yes, this soup freezes well! Allow it to cool completely before transferring it to freezer-safe containers. It can be stored in the freezer for up to 3 months. When you're ready to enjoy it, thaw it overnight in the refrigerator and reheat as directed.

What can I add for extra flavor?

For additional flavor, try adding sautéed garlic or a splash of red wine during cooking. Fresh herbs like thyme or oregano can also enhance the taste. If you like a bit of heat, a pinch of red pepper flakes can give it a nice kick!

Is this soup suitable for a vegetarian diet?

Absolutely! This Onion-Tomato Soup is a great vegetarian option as it contains no meat. Just ensure that the broth you use is vegetable-based. It's a comforting and nutritious choice for anyone following a vegetarian diet.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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