Mushroom and Barley Soup

Featured in: Weeknight Dinners

This nourishing soup combines earthy mushrooms with chewy pearl barley in a savory vegetable broth. The aromatic blend of thyme and oregano enhances the natural flavors, while onions, carrots, and celery create a classic mirepoix base. Perfect for meal prep, this hearty bowl develops even deeper flavors overnight and offers a satisfying vegetarian option that's both filling and warming.

Updated on Sun, 25 Jan 2026 12:38:31 GMT
A warm bowl of Mushroom and Barley Soup, featuring tender sliced mushrooms, chewy pearl barley, and diced carrots in a savory broth, garnished with fresh parsley. Save
A warm bowl of Mushroom and Barley Soup, featuring tender sliced mushrooms, chewy pearl barley, and diced carrots in a savory broth, garnished with fresh parsley. | flashoven.com

Experience the ultimate comfort with this Mushroom and Barley Soup, a rustic European dish that brings together the earthy depth of sautéed mushrooms and the satisfying chew of pearl barley. Perfect for chilly days, this vegetarian soup is both nourishing for the gut and soul-warming, offering a rich flavor profile built from simple, wholesome ingredients.

A warm bowl of Mushroom and Barley Soup, featuring tender sliced mushrooms, chewy pearl barley, and diced carrots in a savory broth, garnished with fresh parsley. Save
A warm bowl of Mushroom and Barley Soup, featuring tender sliced mushrooms, chewy pearl barley, and diced carrots in a savory broth, garnished with fresh parsley. | flashoven.com

This easy-to-follow recipe takes approximately 1 hour from start to finish. With 15 minutes of preparation and 45 minutes of cooking time, you can transform fresh vegetables and grains into a hearty meal that serves four. It is an ideal choice for meal prepping as the flavors continue to develop over time.

Ingredients

  • Vegetables: 2 tbsp olive oil, 1 medium onion (finely chopped), 2 cloves garlic (minced), 2 medium carrots (diced), 2 celery stalks (diced), 400 g mushrooms (sliced), 1 tsp dried thyme, 1 tsp dried oregano.
  • Grains & Liquids: 120 g pearl barley (rinsed), 1.5 liters vegetable broth, 1 bay leaf.
  • Seasoning & Garnish: Salt and freshly ground black pepper to taste, 2 tbsp fresh parsley (optional), 1 tbsp lemon juice (optional).
Product image
Dispense soap hands-free for quick handwashing and easier cleanup while cooking and handling ingredients.
Check price on Amazon

Instructions

1. Sauté Aromatics
Heat the olive oil in a large pot over medium heat. Add the onion and cook for 3 minutes until translucent.
2. Soften Vegetables
Stir in the garlic, carrots, and celery. Cook for 5 minutes, stirring occasionally, until vegetables begin to soften.
3. Brown Mushrooms
Add the mushrooms and cook for 6-8 minutes, until they release their moisture and begin to brown.
4. Season with Herbs
Sprinkle in the thyme and oregano, stirring to coat the vegetables.
5. Combine and Boil
Add the rinsed pearl barley, vegetable broth, and bay leaf. Stir to combine and bring the mixture to a boil.
6. Simmer
Reduce heat to low and simmer uncovered for 35-40 minutes, or until the barley is tender and the soup has thickened slightly.
7. Final Adjustments
Remove the bay leaf. Season to taste with salt, pepper, and lemon juice if using for a touch of brightness.
8. Garnish and Serve
Ladle the soup into warm bowls and garnish with freshly chopped parsley.

Zusatztipps für die Zubereitung

To ensure the best result, rinse the pearl barley under cold water before adding it to the pot to remove any dust or excess starch. Keeping the pot uncovered while simmering allows the broth to reduce slightly, intensifying the savory mushroom flavor.

Varianten und Anpassungen

For a heartier version, add diced potatoes or chopped kale during the last 15 minutes of simmering. To boost the umami depth even further, stir in 1 tablespoon of soy sauce when adding the vegetable broth. Always ensure your broth is gluten-free if required, though be aware that pearl barley naturally contains gluten.

Serviervorschläge

Serve this soup hot with a side of crusty whole-grain bread or a fresh green salad. A final squeeze of lemon juice just before serving can help cut through the richness of the mushrooms and lift the entire dish.

Save
| flashoven.com

Per serving, this Mushroom and Barley Soup contains approximately 210 calories, 6g of total fat, 36g of carbohydrates, and 6g of protein, making it a well-balanced and wholesome choice for any meal.

Product image
Soft, absorbent towels keep counters dry while cooking, wiping spills, and handling dishes during everyday recipe prep.
Check price on Amazon

Recipe Questions & Answers

Can I make this soup gluten-free?

Pearl barley contains gluten, but you can substitute with rice, quinoa, or certified gluten-free grains for a suitable alternative.

How long does this soup keep in the refrigerator?

This soup stores well for 4-5 days in an airtight container. The barley will continue absorbing liquid, so you may need to add more broth when reheating.

Can I freeze mushroom and barley soup?

Yes, freeze for up to 3 months. Note that barley texture may change slightly upon thawing, becoming softer. Thaw overnight in the refrigerator before reheating.

What type of mushrooms work best?

Cremini or button mushrooms are ideal for their earthy flavor and meaty texture. You can also use shiitake for extra umami or a mix of wild mushrooms for deeper flavor.

How can I add more protein?

Stir in white beans, lentils, or cubed tofu during the last 15 minutes of cooking. For non-vegetarians, shredded chicken or sliced steak also work well.

Mushroom and Barley Soup

Earthy, comforting soup with tender mushrooms and chewy pearl barley, perfect for chilly days.

Prep Time
15 min
Baking/Cooking Time
45 min
Time Required
60 min
Recipe by Harper Ward

Recipe Type Weeknight Dinners

Skill Level Easy

Cuisine European

Makes 4 Number of Servings

Diet Considerations Vegan-Friendly, Milk-Free

What You’ll Need

Vegetables

01 2 tablespoons olive oil
02 1 medium onion, finely chopped
03 2 cloves garlic, minced
04 2 medium carrots, diced
05 2 celery stalks, diced
06 14 ounces mushrooms, sliced (cremini or button recommended)
07 1 teaspoon dried thyme
08 1 teaspoon dried oregano

Grains & Liquids

01 2/3 cup pearl barley, rinsed
02 6 cups vegetable broth
03 1 bay leaf

Seasoning & Garnish

01 Salt and freshly ground black pepper, to taste
02 2 tablespoons fresh parsley, chopped
03 1 tablespoon lemon juice

How-To Steps

Step 01

Sauté Aromatics: Heat olive oil in a large soup pot over medium heat. Add onion and cook for 3 minutes until translucent.

Step 02

Build Vegetable Base: Stir in garlic, carrots, and celery. Cook for 5 minutes, stirring occasionally, until vegetables begin to soften.

Step 03

Develop Mushroom Flavor: Add mushrooms and cook for 6-8 minutes, until they release their moisture and begin to brown.

Step 04

Infuse Herbs: Sprinkle in thyme and oregano, stirring to coat the vegetables evenly.

Step 05

Combine Grains and Liquid: Add rinsed pearl barley, vegetable broth, and bay leaf. Stir to combine thoroughly.

Step 06

Simmer to Completion: Bring to a boil, then reduce heat to low and simmer uncovered for 35-40 minutes, or until barley is tender and soup has thickened slightly.

Step 07

Season and Finish: Remove bay leaf. Season to taste with salt, pepper, and lemon juice. Ladle into bowls and garnish with fresh parsley.

Essential Tools

  • Large soup pot
  • Chopping board
  • Sharp knife
  • Wooden spoon
  • Ladle

Allergy Details

Always verify every ingredient for allergens. Talk to a healthcare provider if you're unsure.
  • Pearl barley contains gluten; verify vegetable broth is gluten-free if needed

Nutrition per Serving

Details shown are for general reference. Don’t use as a substitute for medical advice.
  • Calories: 210
  • Fats: 6 g
  • Carbohydrates: 36 g
  • Proteins: 6 g