Double Lentil Mushroom Barley Soup

Featured in: Everyday Home Cooking

This robust soup combines two types of lentils with mushrooms and barley for a deeply satisfying bowl. Red lentils break down slightly to thicken the broth, while brown lentils hold their shape. The barley adds chewiness and makes each serving more filling. Collard greens bring color and extra nutrition, while smoked paprika and thyme layer in savory depth.

Perfect for meal prep, this soup actually tastes better the next day as flavors meld. It freezes beautifully for up to three months. Each bowl delivers 12 grams of plant-based protein, making it substantial enough to stand alone as dinner, though crusty bread makes an excellent accompaniment.

Updated on Wed, 28 Jan 2026 08:06:00 GMT
A warm bowl of Double Lentil and Mushroom Barley Soup, garnished with fresh parsley.  Save
A warm bowl of Double Lentil and Mushroom Barley Soup, garnished with fresh parsley. | joliekitchen.com

The first time I made this soup was during one of those gray February weekends when the world feels like its holding its breath. I had a bag of red lentils that needed using and some mushrooms getting wrinkly in the crisper drawer. Something about the combination of earthy mushrooms and the way barley swells into these little pearls just seemed right for a day when you want the kitchen to feel warm and alive. Now whenever I smell smoked paprika hitting hot oil, Im back in that tiny apartment kitchen, watching steam fog up the windows while something good and steady bubbles away on the stove.

Last winter I made a massive batch for my sister who was recovering from surgery. She texted me at 11pm saying she had three bowls and finally understood what comfort food actually means. Theres something about the way the collard greens retain their slight bite while the barley turns tender and almost creamy that makes this feel like a hug in a bowl. My neighbor actually knocked on my door asking what smelled so good, which I consider the highest compliment a soup recipe can receive.

Ingredients

  • Red lentils: These break down beautifully and naturally thicken your broth while adding a subtle sweetness
  • Brown lentils: They hold their shape through cooking giving you satisfying texture in every spoonful
  • Pearl barley: The secret to that restaurant quality body and chewiness that makes soup feel substantial
  • Cremini mushrooms: Their meaty texture and deeper flavor add umami that you cannot get from vegetables alone
  • Collard greens: Tough enough not to disintegrate but tender enough to eat without wrestling
  • Smoked paprika: This single ingredient transforms the entire soup from ordinary to something with real depth
  • Vegetable broth: Use a good quality one because half your flavor comes from this liquid foundation

Instructions

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Build your flavor foundation:
Heat that olive oil in your biggest soup pot over medium heat and toss in the onion. Give it three minutes to soften and become translucent because this is where all the good flavor starts.
Add the aromatic base:
Stir in your garlic carrots and celery and let them cook another three to four minutes until your kitchen starts smelling amazing.
Get those mushrooms golden:
Add the sliced mushrooms and cook them until they soften and develop some brown spots about five minutes. Do not rush this part because the browning is where the deep savory flavor lives.
Introduce the heartier ingredients:
Stir in both kinds of lentils the barley thyme smoked paprika and bay leaves. Let everything get cozy for a minute while you pour in the broth and water.
Let it simmer patiently:
Bring everything to a boil then drop the heat to a gentle simmer. Cover it up and walk away for thirty minutes. Stir it occasionally and resist the urge to mess with it too much.
Add the greens and finish:
Stir in the collard greens salt and pepper then simmer uncovered for another ten to fifteen minutes. You want the barley and lentils completely tender but not falling apart. Taste it and adjust the seasoning then fish out those bay leaves before serving.
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Hearty Double Lentil and Mushroom Barley Soup served with crusty bread for dipping.  Save
Hearty Double Lentil and Mushroom Barley Soup served with crusty bread for dipping. | joliekitchen.com

This recipe became my go to for sick friends and new parents because it reheats perfectly and somehow feels nourishing in a way that transcends just nutrition. I once brought a batch to a potluck where someone asked if I had used a ham hock for the depth of flavor. The look on their face when I told them it was entirely plant based was absolutely priceless.

Make It Your Own

Swiss chard or kale work beautifully in place of collards though they cook faster so add them in the last five minutes. Sometimes I throw in a parsnip with the carrots for extra sweetness especially in winter when root vegetables are at their best.

Serving Suggestions

A generous slice of crusty whole grain bread is practically mandatory for soaking up that rich brothy goodness. I also love a quick drizzle of good quality olive oil right before serving it makes everything feel just a bit more special.

Storage and Meal Prep

This soup keeps beautifully in the refrigerator for four to five days and actually improves as the flavors meld. It freezes well too though I recommend portioning it before the barley gets too thirsty.

  • Let the soup cool completely before refrigerating or freezing to prevent condensation
  • When reheating add a splash of water or broth because the barley continues to absorb liquid
  • The texture is best when reheated gently on the stovetop rather than in the microwave
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Steaming Double Lentil and Mushroom Barley Soup with collard greens in a rustic pot. Save
Steaming Double Lentil and Mushroom Barley Soup with collard greens in a rustic pot. | joliekitchen.com

There is something deeply satisfying about a soup that starts with humble ingredients and ends up feeling like a proper meal. Hope this becomes a staple in your kitchen like it has in mine.

Questions & Answers

Can I make this gluten-free?

Absolutely. Replace the pearl barley with short-grain brown rice or quinoa. Both alternatives cook in similar timeframes and provide satisfying texture. Ensure your vegetable broth is certified gluten-free as well.

What greens work best in this soup?

Collard greens hold up beautifully during simmering without becoming mushy. Swiss chard or kale make excellent substitutes with similar hearty textures. Spinach works too but should be added in the last 5 minutes to avoid overcooking.

How long does this soup keep?

Store in an airtight container in the refrigerator for up to 5 days. The barley will continue absorbing liquid, so you may need to add extra broth or water when reheating. Freezes well for up to 3 months.

Can I use different types of lentils?

Yes. French green lentils work well in place of brown lentils, adding a slight peppery flavor. Just avoid using only red lentils as they'll completely dissolve. The combination of one sturdy and one quick-cooking variety creates ideal texture.

What brings out the best flavor?

Taking time to properly brown the mushrooms builds deep umami notes. Adding a squeeze of fresh lemon juice right before serving brightens all the flavors. Let the soup rest for 10 minutes off the heat before serving for the best taste.

Is this suitable for meal prep?

Perfect for batch cooking. The soup actually improves after a day in the fridge as spices meld and barley absorbs more flavor. Portion into individual containers for easy grab-and-go lunches throughout the week.

Double Lentil Mushroom Barley Soup

Hearty soup with red and brown lentils, mushrooms, barley, and collard greens. A nourishing, protein-rich meal ready in over an hour.

Prep Time
20 min
Time to Cook
45 min
Overall Time
65 min
Created by Nathaniel Weber


Skill Level Easy

Cuisine Type International

Makes 6 Portions

Diet Details Plant-Based, No Dairy

What You 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, optional 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 diced celery. Cook for 3 to 4 minutes, stirring occasionally.

Step 03

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

Step 04

Add legumes and grains: Stir in red lentils, brown lentils, pearl barley, dried thyme, smoked paprika, and bay leaves.

Step 05

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

Step 06

Simmer covered: Cover the pot and simmer for 30 minutes, stirring occasionally, until legumes begin to soften.

Step 07

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

Step 08

Adjust and finish: Taste and adjust seasoning as needed. Remove bay leaves before serving. Ladle into bowls and garnish with fresh parsley if desired.

Gear Needed

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

Allergy Notice

Review each item for allergens and talk to a healthcare provider if needed.
  • 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 (each serving)

Details shown here are for information and don't replace professional guidance.
  • Energy: 245
  • Fats: 4 g
  • Carbohydrates: 44 g
  • Proteins: 12 g