Double Lentil and Mushroom Barley Soup

Featured in: Vegetable & Grain Pairings

This robust soup combines two types of lentils—red for creaminess and brown for texture—with nutty pearl barley and savory mushrooms. The collard greens add vibrant color and extra nutrition, while smoked paprika and thyme build depth. Simmer everything together slowly to let the barley soften and the lentils break down slightly, creating a thick, spoon-coating broth that's both filling and warming.

Updated on Wed, 28 Jan 2026 10:52:00 GMT
Creamy Double Lentil and Mushroom Barley Soup simmering in a rustic pot with fresh parsley garnish. Save to Pinterest
Creamy Double Lentil and Mushroom Barley Soup simmering in a rustic pot with fresh parsley garnish. | ovenmargin.com

The aroma of my Double Lentil and Mushroom Barley Soup always reminds me of that unexpectedly cold September weekend when the rain wouldn't stop. I found myself rummaging through my pantry, discovering forgotten lentils and barley tucked behind pasta boxes. The gentle rhythm of chopping vegetables became a meditation while water streamed down my kitchen windows. What began as a simple pantry-clearing exercise became something magical that warmed our home from the inside out.

Last winter, my neighbor was recovering from surgery and I wanted to bring something nourishing that would actually make her smile. I carried over this soup in a thermos, and weeks later she called asking for the recipe, saying her kids had been requesting that special soup with the tiny red things over and over. Somehow this humble pot of lentils and mushrooms had bridged our households and become part of their family dinner rotation too.

Ingredients

  • Two Types of Lentils: Red lentils break down to create a silky base while brown lentils hold their shape, giving you this beautiful textural contrast that keeps each spoonful interesting.
  • Pearl Barley: I discovered that rinsing barley thoroughly makes a noticeable difference in the finished soup, removing excess starch for cleaner flavor.
  • Cremini Mushrooms: These humble brown mushrooms contain so much more flavor than their button cousins, developing almost meaty depth when properly browned before adding liquid.
  • Collard Greens: The sturdy texture stands up beautifully to simmering without disintegrating like spinach would, plus they retain a slight bite that makes the soup feel substantial.
  • Smoked Paprika: Just a teaspoon transforms the entire pot, adding this subtle smoky undertone that makes people wonder what your secret ingredient might be.

Instructions

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Season soups, salads, meats, and vegetables evenly while cooking with quick, one-handed grinding.
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Build Your Flavor Base:
Heat that olive oil until it shimmers before adding your diced onion. Youll know youre on the right track when your kitchen fills with that sweet aroma as they soften and become translucent.
Layer In The Aromatics:
When you add garlic, carrots and celery, listen for that satisfying sizzle as they hit the hot oil. This trio forms the backbone of flavor that will carry through the entire pot.
Master The Mushrooms:
Resist the urge to stir your mushrooms constantly. Let them sit undisturbed for a minute or two between stirs so they develop those gorgeous browned edges that concentrate their flavor.
Create Your Soup Foundation:
The moment when you add those colorful lentils alongside the pearly barley is pure kitchen magic. Give everything a good stir so the grains get coated in the flavored oil before adding your liquids.
The Perfect Simmer:
Look for gentle bubbles breaking the surface, not a rolling boil. Your soup should murmur quietly on the stove, the lid occasionally rattling slightly as steam escapes.
Incorporate The Greens:
When you lift the lid to add your collards, take a moment to appreciate the transformation that has happened. The broth will have darkened to a rich amber color as the lentils begin to break down.
Finishing Touches:
Taste before serving and dont be shy with final seasoning adjustments. Sometimes a pinch more salt can suddenly bring all the flavors into perfect harmony.
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Season soups, salads, meats, and vegetables evenly while cooking with quick, one-handed grinding.
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Hearty Double Lentil and Mushroom Barley Soup served in a white bowl with crusty bread. Save to Pinterest
Hearty Double Lentil and Mushroom Barley Soup served in a white bowl with crusty bread. | ovenmargin.com

One particularly memorable evening, I served this soup during a power outage when a winter storm knocked out electricity in our neighborhood. We gathered around our table with flickering candles, the steam from our bowls rising in the chilled air. Something about the contrast between the biting cold outside and the warmth of both the soup and the shared moment made everything taste more vivid. Even now, making this recipe connects me to that feeling of finding comfort in simplicity.

Make It Your Own

After making this soup countless times, Ive discovered its remarkably forgiving and adaptable to whatever produce is lingering in your refrigerator drawer. Sweet potatoes can replace carrots for a slightly sweeter profile, while parsnips add an unexpected earthy note. Ive even thrown in leftover roasted vegetables from previous meals, and the soup graciously incorporates them all into its flavorful embrace.

Storage and Freezing

This soup develops even deeper flavor overnight in the refrigerator as the lentils and barley continue to release their starches, creating an almost velvety consistency by day two. When freezing portions, I discovered that letting the soup cool completely before transferring to containers prevents those frustrating ice crystals that can dilute flavor. After thawing, a fresh herb garnish brings it right back to life with no hint that it ever spent time in the freezer.

Serving Suggestions

The rich, earthy quality of this soup creates a beautiful foundation for creative toppings that can transform each serving. Through much delicious experimentation, Ive found that a swirl of good olive oil and a sprinkle of flaky sea salt just before serving creates this luxurious mouthfeel that belies how nutritious the soup actually is.

  • A dollop of tangy yogurt or coconut cream creates a beautiful color contrast and adds creamy richness that cuts through the earthiness.
  • Toasted pumpkin seeds or sunflower seeds sprinkled on top just before serving maintain their crunch and add a delightful textural element.
  • For heat lovers, a few drops of hot sauce or a sprinkle of red pepper flakes wakes up all the flavors and creates a pleasant warming sensation.
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Savory Double Lentil and Mushroom Barley Soup topped with fresh collard greens and smoked paprika. Save to Pinterest
Savory Double Lentil and Mushroom Barley Soup topped with fresh collard greens and smoked paprika. | ovenmargin.com

This soup has become my culinary love letter to friends going through difficult times, new parents too exhausted to cook, and neighbors who could use a moment of warmth. Theres something profoundly connecting about offering someone a bowl of something you've made with care, especially when that bowl contains so much nourishment disguised as simple comfort.

Common Recipe Questions

Can I make this gluten-free?

Absolutely. Swap the pearl barley for short-grain brown rice, quinoa, or certified gluten-free barley. Check your vegetable broth label to ensure it's certified gluten-free as well.

How long does this soup keep in the refrigerator?

Stored in an airtight container, this soup stays fresh for 4-5 days. The flavors actually deepen and improve after a day or two. The barley will continue absorbing liquid, so add a splash of broth or water when reheating.

Can I freeze this soup?

Yes, freeze for up to 3 months. Portion into freezer-safe containers, leaving space for expansion. Thaw overnight in the refrigerator before reheating gently on the stovetop.

What can I substitute for collard greens?

Kale, Swiss chard, or spinach work beautifully. Add delicate greens like spinach in the last 2-3 minutes of cooking to prevent wilting too much.

Do I need to soak the lentils first?

No soaking required—red and brown lentils cook relatively quickly. Just rinse them thoroughly before adding to the pot. This keeps prep time minimal while still delivering tender results.

How can I add more protein?

Stir in cubed tofu during the last 10 minutes, or serve with a dollop of Greek yogurt or a sprinkle of hemp seeds. The lentils and barley already provide 12 grams of protein per serving.

Double Lentil and Mushroom Barley Soup

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

Prep Time
20 min
Time to Cook
45 min
Time Required
65 min
Published by Ryan Mitchell


Skill Level Easy

Cuisine International

Makes 6 Number of Servings

Diet Details Vegan-Friendly, Lactose-Free

Ingredient List

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 ounces 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, optional

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 diced celery. Cook for 3 to 4 minutes until fragrant and vegetables begin to soften.

Step 03

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

Step 04

Combine legumes and grains: Stir in red and brown lentils, pearl barley, dried thyme, smoked paprika, and bay leaves until evenly distributed.

Step 05

Deglaze and establish simmer: Pour in vegetable broth and water. Bring to a boil over medium-high heat, then reduce heat to low and maintain a gentle simmer.

Step 06

First cooking stage: Cover the pot and simmer for 30 minutes, stirring occasionally to prevent settling and ensure even cooking.

Step 07

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

Step 08

Final seasoning and garnish: Adjust salt and pepper to desired taste. Remove bay leaves and discard. Ladle into serving bowls and garnish with fresh parsley if desired.

Kitchen Tools

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

Allergy Details

Be sure to review every ingredient for potential allergens. Always get professional advice if you're unsure.
  • Contains gluten (pearl barley)
  • Nut-free, soy-free, and dairy-free
  • For gluten-free preparation, use certified gluten-free grains and verify vegetable broth labeling

Nutrition Details (for each serving)

These figures are here for your reference and shouldn’t replace advice from a healthcare provider.
  • Calories: 245
  • Fats: 4 g
  • Carbohydrates: 44 g
  • Proteins: 12 g