Double Lentil Mushroom Barley Soup

Featured in: Family-Friendly Meals

This nourishing soup combines red and brown lentils with earthy mushrooms and chewy barley for a satisfying, protein-packed bowl. The addition of collard greens adds vitamins and texture, while smoked paprika and thyme create depth. Perfect for meal prep, this soup actually tastes better the next day as flavors meld together. Serve with crusty bread for a complete, comforting meal that keeps you full for hours.

Updated on Wed, 28 Jan 2026 15:54:00 GMT
Steaming bowls of Double Lentil and Mushroom Barley Soup sit ready to eat, garnished with fresh parsley and served alongside toasted bread. Save
Steaming bowls of Double Lentil and Mushroom Barley Soup sit ready to eat, garnished with fresh parsley and served alongside toasted bread. | fluxbaker.com

Standing at my kitchen window on a blustery autumn afternoon, I felt an unmistakable yearning for something hearty yet nourishing. The wind whipped colorful leaves across my yard as I rummaged through my pantry, discovering forgotten lentils and pearl barley tucked behind rice containers. My fingers brushed against a basket of cremini mushrooms in the refrigerator, and suddenly this double lentil soup materialized in my mind as if it had been there all along. The earthy aroma that filled my kitchen that day still transports me back to that perfect moment of culinary intuition.

My neighbor Elaine knocked on my door one particularly cold evening when the steam from this soup had fogged up my kitchen windows. Her husband was traveling, and shed been feeling under the weather for days. Without planning to, I sent her home with a quart container of this soup, still warm from the pot. The next morning, a text arrived: Could you share that recipe? It was the first thing that tasted good to me in days. Since then, this has become my default offering for anyone needing comfort delivered in a bowl.

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Ingredients

  • Red and brown lentils: The red lentils break down and thicken the broth while the brown ones maintain their shape, giving you this incredible textural contrast that makes every spoonful interesting.
  • Pearl barley: I discovered that rinsing the barley thoroughly removes excess starch and helps it cook more evenly with a pleasant chew rather than mushiness.
  • Cremini mushrooms: These little flavor bombs release an incredible earthy richness when you let them truly brown before adding liquids, transforming an ordinary soup into something that tastes like it simmered all day.
  • Collard greens: The sturdy leaves hold up beautifully in the hot broth without disintegrating like spinach might, plus they retain a slight bite that contrasts wonderfully with the softer lentils.
  • Smoked paprika: Just a teaspoon adds this subtle smoky depth that makes people wonder what your secret ingredient might be, without overpowering the natural flavors of the vegetables.

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Instructions

Build your flavor foundation:
Heat olive oil in a large soup pot and add the diced onion, letting it soften and become translucent for about 3 minutes. The kitchen should start filling with that sweet onion aroma that signals good things are coming.
Layer in the aromatics:
Stir in the minced garlic, diced carrots, and celery, cooking them together for another 3-4 minutes until they begin to soften. This trio creates the classic soup base that will support all the other flavors.
Mushroom magic moment:
Add those beautiful sliced mushrooms and let them cook until they release their moisture and begin to brown, about 5 minutes. Resist the urge to stir too frequently, those browned edges are pure flavor gold.
Introduce the stars:
Stir in both types of lentils, the pearl barley, dried thyme, smoked paprika, and bay leaves, letting everything mingle together briefly. This quick toasting step wakes up the dried herbs and spices.
The big pour:
Add your vegetable broth and water, bring everything to a gentle boil, then reduce to a simmer. Cover the pot and let the magic happen for about 30 minutes, giving it an occasional stir.
Green finale:
Add your chopped collard greens along with salt and pepper, then simmer uncovered for the final 10-15 minutes. The greens will brighten slightly as they cook while maintaining their structure.
Final adjustments:
Taste your creation and adjust seasonings if needed, then fish out those bay leaves. Sometimes I add a touch more salt at this stage, or an extra crack of black pepper if Im feeling it.
Serve with flair:
Ladle this beautiful concoction into bowls and scatter fresh parsley on top if you have it. The contrast of the bright green against the earthy soup makes for a stunning presentation.
Double Lentil and Mushroom Barley Soup simmers in a rustic pot, showing tender lentils, mushrooms, barley, and collard greens in rich broth. Save
Double Lentil and Mushroom Barley Soup simmers in a rustic pot, showing tender lentils, mushrooms, barley, and collard greens in rich broth. | fluxbaker.com

Last winter during that terrible three-day power outage, my gas stove became the heart of our home. I made this soup by flashlight for neighbors who gathered in our kitchen, the steam warming cold hands and faces. We ate huddled under blankets, sharing stories as wind howled outside, and somehow what started as a practical meal for a difficult situation became a treasured memory of community. Someone commented that they never knew vegetarian food could be so substantive, so deeply satisfying during a crisis.

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Make-Ahead Options

This soup actually improves with time as the flavors meld together in the refrigerator. Ive learned to make a double batch specifically so I can portion and freeze individual servings in silicone bags laid flat to save freezer space. The texture of the barley does soften slightly after freezing, but a quick simmer when reheating brings it back to life beautifully. For meal prep, I sometimes prepare all the vegetables on Sunday, storing them separately in the refrigerator so I can throw this together in just 30 minutes on a busy weeknight without all the chopping.

Variations Worth Trying

Over dozens of iterations, Ive discovered some delightful twists on this already wonderful recipe. Adding a parmesan rind during simmering (if youre not keeping it vegan) creates an incredible depth that feels almost meaty. Substituting half the water with white wine brings a subtle acidity that brightens the earthier notes. For a more North African inspired version, I sometimes add a teaspoon of cumin, a pinch of cinnamon, and a handful of chopped dried apricots that plump up beautifully in the broth and add unexpected bursts of sweetness against the savory background.

Serving Suggestions

While this soup is certainly a complete meal on its own, Ive found some perfect accompaniments that elevate the experience even further. A slice of olive oil-brushed sourdough toasted with a sprinkle of nutritional yeast makes an incredible dipper that reinforces the umami notes in the mushrooms. The acid-forward contrast of a simple side salad dressed with lemon and olive oil refreshes the palate between spoonfuls of the rich soup. One memorable dinner party featured small bowls of toppings that guests could add themselves: toasted pumpkin seeds, crumbled feta, fresh dill, and thinly sliced radishes for crunch.

  • Try serving in warmed bowls to keep the soup hot longer, especially during winter months when nothing is worse than lukewarm soup.
  • A drizzle of good olive oil just before serving creates beautiful green-gold pools on the surface and adds a luxurious richness.
  • Keep some lemon wedges nearby, as a gentle squeeze just before eating wakes up all the flavors, especially if youre enjoying leftovers.
Rustic ladle serving Double Lentil and Mushroom Barley Soup into a white bowl, highlighting the earthy mushrooms and vibrant green collard garnish. Save
Rustic ladle serving Double Lentil and Mushroom Barley Soup into a white bowl, highlighting the earthy mushrooms and vibrant green collard garnish. | fluxbaker.com

This double lentil mushroom barley soup has seen me through countless cold nights, busy weeks, and impromptu gatherings. Its the recipe I return to when I need to feel both nourished and comforted, proving that the simplest foods often leave the deepest impressions.

Recipe FAQ

Can I make this soup gluten-free?

Yes, simply substitute pearl barley with short-grain brown rice or quinoa. Also ensure your vegetable broth is certified gluten-free.

How long does this soup keep in the refrigerator?

This soup stores well for up to 5 days in an airtight container. The barley will continue absorbing 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. Leave slightly more room in containers as barley expands when frozen. Thaw overnight in the refrigerator before reheating.

What other greens can I use instead of collard greens?

Swiss chard, kale, or spinach work well. Add heartier greens like kale earlier in the simmering process, while spinach only needs 2-3 minutes to wilt.

Do I need to soak lentils before cooking?

No, red and brown lentils cook relatively quickly and don't require soaking. Just rinse them thoroughly before adding to the pot.

How can I add more protein to this soup?

This soup already provides 12g of protein per serving. For more, add a can of white beans during the last 15 minutes of cooking or serve with a dollop of Greek yogurt if not vegan.

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Double Lentil Mushroom Barley Soup

Hearty soup with red and brown lentils, mushrooms, barley, and collard greens for a protein-rich, comforting meal.

Prep Duration
20 min
Cook Duration
45 min
Overall Time
65 min
Created by Sophia Brown


Skill Level Easy

Cuisine International

Makes 6 Number of Servings

Diet Preferences Plant-Based, 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

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 for garnish

How-To Steps

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 celery. Cook for 3 to 4 minutes, stirring occasionally.

Step 03

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

Step 04

Combine Legumes and Grains: Stir in red lentils, brown lentils, barley, dried thyme, smoked paprika, and bay leaves.

Step 05

Establish Cooking Liquid: Pour in vegetable broth and water. Bring to a boil, then reduce heat to a gentle simmer.

Step 06

Initial Simmer: Cover pot and cook for 30 minutes, stirring occasionally to ensure even cooking.

Step 07

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

Step 08

Final Adjustment: Taste and adjust seasoning as needed. Remove bay leaves before serving.

Step 09

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

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Gear Needed

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

Allergy Details

Review all components for allergens. If unsure, talk to a healthcare provider.
  • Contains gluten from barley
  • Nut-free, soy-free, and dairy-free

Per Serving Nutrition Details

Details here are for information—don’t use as medical advice.
  • Calorie Count: 245
  • Fats: 4 g
  • Carbohydrates: 44 g
  • Proteins: 12 g

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