Double Lentil and Mushroom Barley Soup

Featured in: Everyday Home Plates

This robust soup brings together the earthy goodness of two types of lentils—red and brown—with meaty cremini mushrooms and chewy pearl barley. The collard greens add nutrition and vibrant color, while smoked paprika and thyme provide depth. Ready in about an hour, this filling bowl delivers 12 grams of protein per serving and keeps you satisfied for hours.

Updated on Wed, 28 Jan 2026 08:00:00 GMT
Steaming bowls of Double Lentil and Mushroom Barley Soup feature tender lentils, earthy mushrooms, and vibrant collard greens for a wholesome, fiber-rich meal. Save
Steaming bowls of Double Lentil and Mushroom Barley Soup feature tender lentils, earthy mushrooms, and vibrant collard greens for a wholesome, fiber-rich meal. | tastybsissa.com

It was a Tuesday evening in November when the rain would not stop rattling against the kitchen window. I wanted something heavy enough to feel like a hug but light enough to not make me fall asleep at the table. This pot of soup happened by accident when I realized I did not have enough of just one kind of lentil. The earthy smell of mushrooms hitting the hot oil instantly changed the mood of the house. Now this double lentil mix is my standard for any grey day.

I once made a massive batch of this for a neighbor who was moving house in the middle of winter. We sat on stacked boxes in an empty living room with steam rising from mismatched mugs. There is something about the way barley swells and softens that makes a house feel occupied and warm. We did not even need spoons for the last bit because we used crusty bread to swipe the bowls clean.

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Ingredients

  • Red lentils: These act as a natural thickener and disappear into the base.
  • Brown lentils: They provide a wonderful texture that stands up to the long simmer.
  • Pearl barley: This grain adds a chewy heartiness that turns a simple soup into a full meal.
  • Cremini mushrooms: Slicing these thick ensures they do not get lost among the grains.
  • Collard greens: Their sturdy leaves hold up perfectly without turning into mush.
  • Smoked paprika: A little bit of this adds a depth that mimics hours of slow cooking.
  • Vegetable broth: Use a low sodium version so you can control the final seasoning yourself.

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Instructions

Sweat the aromatics:
Sauté your onions in the olive oil until they turn translucent and sweet. Add the garlic, carrots, and celery to build that essential flavor foundation.
Brown the mushrooms:
Toss in the sliced mushrooms and let them sit for a minute to get some color. The golden edges are where all that savory umami flavor lives.
Build the base:
Stir in both types of lentils along with the barley and the dry spices. Let the grains toast for a moment before adding the broth and water.
The long simmer:
Bring everything to a boil then cover it up and let the flavors mingle. The barley needs about thirty minutes to start getting tender and plump.
Wilt the greens:
Fold in the chopped collard greens and season with salt and pepper. Let it simmer uncovered for a final stretch until every bite is perfectly soft.
A close-up of Double Lentil and Mushroom Barley Soup showcases sautéed vegetables, hearty barley, and aromatic herbs simmering in a rich, savory broth. Save
A close-up of Double Lentil and Mushroom Barley Soup showcases sautéed vegetables, hearty barley, and aromatic herbs simmering in a rich, savory broth. | tastybsissa.com

Last year during the first frost my daughter helped me wash the greens for this soup. She was fascinated by how the water beaded off the waxy collard leaves. We laughed as the kitchen filled with the scent of thyme and woodsmoke from the fireplace. It was the kind of quiet afternoon that makes you appreciate the slow pace of stovetop cooking.

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Choosing Your Greens

While collards are fantastic for their structure you can easily swap them for whatever is looking fresh at the market. Kale or Swiss chard work beautifully if you want a slightly softer texture in the finished bowl. Just remember that softer greens like spinach should only be added at the very last second.

Texture and Consistency

If you prefer a thinner soup keep an extra cup of broth or water on standby. The barley and lentils are thirsty ingredients and will thicken the liquid significantly as it sits. I often find that leftovers need a splash of water when being reheated the next day.

Serving Suggestions

A bowl of this soup is a complete meal on its own but a few additions can take it over the top. I love adding a bright acidic finish right before the first spoonful. It cuts through the earthy richness of the lentils and mushrooms perfectly.

  • Add a squeeze of fresh lemon juice to each bowl for a hit of brightness.
  • Serve it alongside a piece of toasted sourdough for dipping.
  • Garnish with plenty of fresh parsley to add a pop of color and freshness.
Serve this nourishing Double Lentil and Mushroom Barley Soup with crusty bread, garnished with fresh parsley for a comforting vegan dinner. Save
Serve this nourishing Double Lentil and Mushroom Barley Soup with crusty bread, garnished with fresh parsley for a comforting vegan dinner. | tastybsissa.com

This soup is a testament to how humble pantry staples can create something truly magnificent. I hope it brings as much warmth to your table as it has to mine over the years.

Recipe FAQs

Can I make this soup gluten-free?

Yes, simply replace pearl barley with quinoa or short-grain brown rice. Cook times may vary slightly depending on your grain choice.

Can I use other greens instead of collard greens?

Absolutely. Swiss chard, kale, or spinach work well. Add delicate greens like spinach in the last few minutes to prevent overcooking.

How long does this soup keep in the refrigerator?

Stored in an airtight container, it keeps well for 4-5 days. The barley will continue to absorb liquid, so you may need to add more broth or water when reheating.

Can I freeze this soup?

Yes, it freezes beautifully for up to 3 months. The texture may change slightly as barley can become softer, but flavor remains excellent.

What's the best way to reheat leftovers?

Gently warm on the stovetop over medium-low heat, adding extra broth or water if needed. This preserves texture better than microwave reheating.

Do I need to soak lentils before cooking?

No soaking required. Red and brown lentils cook relatively quickly and will become tender during the simmering process.

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Double Lentil and Mushroom Barley Soup

Hearty combination of red and brown lentils with mushrooms, barley, and collard greens creates a protein-rich, comforting bowl perfect for cold days.

Prep Time
20 minutes
Cook Time
45 minutes
Total Duration
65 minutes
Recipe by Lauren McCarthy

Recipe Type Everyday Home Plates

Skill Level Easy

Cuisine International

Makes 6 Number of Servings

Diet Info Vegan-Friendly, No Dairy

What You'll Need

Legumes & Grains

01 ½ cup red lentils, rinsed
02 ½ cup brown lentils, rinsed
03 ¾ cup pearl barley, rinsed

Vegetables

01 2 tablespoons olive oil
02 1 large yellow onion, diced
03 3 garlic cloves, minced
04 2 medium carrots, diced
05 2 celery stalks, diced
06 10 oz cremini or button mushrooms, sliced
07 4 cups chopped collard greens, about 1 small bunch

Liquids

01 8 cups vegetable broth
02 1 cup water

Herbs & Seasonings

01 1 teaspoon dried thyme
02 1 teaspoon smoked paprika
03 2 bay leaves
04 1 teaspoon salt, or to taste
05 ½ teaspoon black pepper, or to taste
06 2 tablespoons chopped fresh parsley, optional for garnish

How to Prepare

Step 01

Sauté aromatics: Heat olive oil in a large soup pot over medium heat. Add diced onion and sauté for 3 minutes until softened.

Step 02

Build flavor base: Stir in minced garlic, diced carrots, and diced celery. Cook for 3 to 4 minutes, stirring occasionally.

Step 03

Develop mushroom depth: Add sliced mushrooms and cook, stirring occasionally, until softened and browned, approximately 5 minutes.

Step 04

Combine dry ingredients: Stir in red lentils, brown lentils, pearl barley, dried thyme, smoked paprika, and bay leaves.

Step 05

Begin cooking: Pour in vegetable broth and water. Bring to a boil, then reduce heat to a simmer.

Step 06

Simmer base: Cover and cook for 30 minutes, stirring occasionally, until lentils and barley begin to soften.

Step 07

Incorporate greens: Add chopped collard greens, salt, and black pepper. Simmer uncovered for 10 to 15 minutes until barley and lentils are tender.

Step 08

Season and finish: Adjust seasoning to taste and remove bay leaves before serving.

Step 09

Serve: Ladle soup into bowls, garnish with fresh parsley if desired, and serve hot.

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Equipment Needed

  • Large soup pot
  • Chef's knife
  • Cutting board
  • Measuring cups and spoons
  • Ladle

Allergy Details

Review each ingredient for allergies. If unsure, speak with a healthcare provider.
  • Contains gluten from barley
  • Recipe is nut-free, soy-free, and dairy-free
  • For gluten-free diets, use certified gluten-free grain and verify broth labels

Nutrition Info (per serving)

Nutritional data is a helpful guideline, but always check with your doctor if needed.
  • Calorie count: 245
  • Fat content: 4 g
  • Carbohydrates: 44 g
  • Protein amount: 12 g

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