Mushroom-Onion Soup

Prep: 10 min Cook: 70 min Serves: 12 Cuisine: American

A hearty mushroom and onion soup with savory garlic and Parmesan, perfect for comforting meals and suitable for mushroom lovers and those seeking a rich, flavorful broth.

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Ingredients

  • 2 lb. sliced fresh mushrooms
  • 1 large onion, thinly sliced
  • 1 clove minced garlic
  • 1/4 c. melted margarine
  • 2 Tbsp. tomato paste
  • 6 (10 3/4 oz.) cans undiluted chicken broth
  • 1/4 c. Parmesan cheese
  • 2 tsp. salt
  • 1/4 tsp. pepper
  • croutons (optional)

Instructions

  1. Saute mushrooms, onion, and garlic in melted margarine in a heavy 4-quart saucepan until the onion is tender.
  2. Stir in tomato paste and simmer for about 1 minute.
  3. Add chicken broth, Parmesan cheese, salt, and pepper; simmer for 1 hour.
  4. Serve hot, optionally garnished with croutons and additional cheese.

Tips & Substitutions

For a deeper flavor, try adding a splash of white wine while sautéing the vegetables. If you prefer a vegan version, substitute margarine with olive oil and use vegetable broth instead of chicken broth. Fresh herbs like thyme or rosemary can also enhance the soup's taste. You can blend the soup for a creamier texture if desired.

Serving Suggestions

This Mushroom-Onion Soup pairs beautifully with crusty bread or a light salad for a complete meal. Consider serving it alongside Chicken Breasts With Stuffing for a heartier option. For a gourmet touch, drizzle with truffle oil or add a dollop of sour cream before serving.

Storage & Reheating

Store leftovers in an airtight container in the refrigerator for up to 5 days. To reheat, gently warm on the stove over medium heat, adding a splash of broth or water if the soup thickens. It can also be reheated in the microwave, stirring occasionally to ensure even heating.

Nutrition & Diet Analysis (per serving)

Each serving of Mushroom-Onion Soup contains roughly 138 calories, with 7g protein, 19g carbohydrates, and 5g fat. It is an excellent source of vitamin D (66% of the Daily Value), vitamin C (27% of the Daily Value), and potassium (21% of the Daily Value), and a good source of iron and protein. It also contributes 4g of dietary fiber toward your daily target.

138 kcal 7% DV
Protein Fat Carbs

Macronutrients

Protein 7.1g 14% DV
Total Fat 5.2g 7% DV
Carbs 19.5g 7% DV
Fiber 4g 14% DV
Sugar 10.6g 21% DV

Electrolytes

Sodium 314.5mg 14% DV
Potassium 981.5mg 21% DV
Cholesterol 1mg

Vitamins & Minerals

Vitamin A 60.9mcg 7% DV
Vitamin C 24.5mg 27% DV
Vitamin D 13.1mcg 66% DV
Calcium 71.2mg 5% DV
Iron 2.8mg 16% DV
Diet fit Low-carb Under 400 cal
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 this soup?

Yes, this soup freezes well. Allow it to cool completely before transferring it to freezer-safe containers. It can be stored for up to 3 months. To reheat, thaw overnight in the refrigerator and warm on the stove, adding a bit of liquid if needed.

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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