Crockpot Lentil and Mushroom Soup

By Rena Awada | Updated On June 5, 2022

Get your daily dose of goodness in one bowl with this Crockpot Lentil And Mushroom Soup Recipe. Easy to make, filling, and perfect for the whole family.

lentil soup recipe

Nothing more filling, comforting, and satisfying than this Crockpot Lentil And Mushroom Soup Recipe. I absolutely love any recipes with lentils so this lentil soup recipe is one of my all-time favorite recipes. I also happen to love mushrooms so combine both and get this amazing crockpot lentil mushroom soup combo that’s to die for! This simple and easy lentil soup recipe is vegetarian, loaded with fiber, and so tasty. Serve it as a side dish or a light dinner for a nutritious heart-healthy meal. Cooked in the crockpot but can easily be prepared on your stovetop instead.

why you will love this vegetarian Lentil soup

  • Nutritious: Loaded with fiber, vitamins, and minerals, this lentil soup is so good for you.
  • Simple and easy: Making this vegetarian lentil soup is quite easy to make, especially when it is prepared in the crockpot.
  • So tasty: Having only one bowl of this crockpot lentil soup will be hard.
crockpot lentil soup recipe

Is lentil soup fattening?

Not sure what you put in your Lentil soup recipe to make it fattening but I would say no. Lentil is very beneficial. They are high in protein, fiber, nutrients, and vitamins. Lentils are known to be low in calories and contain almost no fat. One cup of lentils has about 230 calories and leaves you quite full and satisfied after you eat them.

crockpot lentil soup

Ingredients you will need for this lentil soup

  • Olive Oil: any other oil will work, try avocado oil.
  • Sweet Onion: If you don’t have white sweet onions, use whatever you already have on hand.
  • Carrots sliced: use fresh and not canned carrots.
  • Garlic Cloves: try to use fresh garlic cloves, but if you are in a pinch you may use 1 tablespoon of garlic powder.
  • Celery stalks: If you do not like celery use another veggie you like or skip it.
  • Button Mushrooms: halved or quartered if too big
  • Dried Brown or Green Lentils: do not use the orange-looking lentils.
  • Bell pepper: we used red, but you may use yellow or orange.
  • Low Sodium Broth: any broth will work, but use vegetable broth to keep this meal vegetarian.
  • Italian Seasoning: if you do not have Italian seasoning, use 1 tsp thyme, 1 tsp oregano, and 1 tsp parsley.
  • Sea salt and pepper, to taste
  • 1 Lime zest and juiced
  • Grated Parmesan Cheese: grate your own or use store-bought.
  • Fresh thyme to garnish
crockpot lentil soup

How to make this crockpot lentil soup

  • Add all the ingredients, except for Parmesan cheese, lime juice, and zest to the slow cooker.
  • Cook on LOW for 7-8 hours, or HIGH for 3-4 hours.
  • Once the time is up, stir in the remaining ingredients: Parmesan cheese, lime juice, and zest.
  • Season with salt and pepper to taste, and garnish with fresh thyme and more lemon or lime if desired. Enjoy while hot!

Frequently asked questions

What kinds of lentils are best for soups?

Most lentil soups recipes call for the same kinds of lentils. There are 5 types of lentils that are usually used: Brown Lentils, Green Lentils, Red Lentils, Yellow Lentils, and Black Lentils. Brown lentils are what’s most commonly used with soups unless you make crushed lentil soup then you go for the red or yellow lentils which cook much faster than the green, brown, and black lentils.

Is Lentil Soup high in calories?

Technically, No. The basic lentil soup recipe isn’t high in calories. A typical or traditional lentil soup recipe will have about 130-150 calories per cup. What you put on your lentil soup will determine how high the calorie content will be.

How to store lentil soup?

Store leftover lentil soup in a sealed container in the fridge for up to 4 days. You may freeze lentil soup for up to 3 months. Reheat in the microwave when ready to serve.

easy lentil soup recipe
mushroom soup recipe

Pretty sure you will love this crockpot lentil and mushroom soup recipe. If you happen to make it snap a pic of it and share it with me on Instagram. I would love to get some feedback in the comments below. Oh, please don’t forget to rate it as well.

Are you a soup person? I have more soup recipes you can check out below:

crockpot lentil soup

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crockpot lentil soup

Crockpot Lentil And Mushroom Soup Recipe

Healthy and filling lentil soup recipe with added veggies for a heartier soup recipe.
4.75 from 4 votes
Print Pin Rate
Course: Soup
Cuisine: Mediterranean
Diet: Vegetarian
Prep Time: 10 minutes
Cook Time: 20 minutes
Total Time: 30 minutes
Servings: 8
Calories: 226kcal
Author: Rena


  • 1 Tbsp Olive Oil
  • 1 Large Sweet Onion diced
  • 2 medium Carrots sliced
  • 1 Bell Pepper red, yellow, or orange
  • 3 Garlic Cloves pressed
  • 2 Celery stalks sliced
  • 1 lb Button Mushrooms halved or quartered if too big
  • 1.5 Cup Dried Brown or Green Lentils rinsed
  • 8 Cups Low Sodium Broth
  • 1 Tbsp Italian Seasoning
  • Sea salt and pepper, to taste
  • 1 Lime zest and juiced
  • 1/2 Cup Grated Parmesan Cheese
  • Fresh thyme to garnish


  • Add all the ingredients, except for Parmesan cheese, lime juice and zest to the slow cooker.
  • Cook on LOW for 7-8 hours, or HIGH for 3-4 hours.
  • Once the time is up, stir in the remaining ingredients: Parmesan cheese, lime juice, and zest.
  • Season with salt and pepper to taste, and garnish with fresh thyme and more lemon or lime if desired. Enjoy while hot!


  • use any oil of choice
  • you may add any other veggies
  • chop mushrooms smaller if you like
  • to keep this vegetarian use vegetable broth.
  • for a vegan option: use dairy-free cheese or skip it entirely.


Calories: 226kcal | Carbohydrates: 31g | Protein: 18g | Fat: 4g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Cholesterol: 5mg | Sodium: 570mg | Potassium: 1169mg | Fiber: 13g | Sugar: 5g | Vitamin A: 3101IU | Vitamin C: 28mg | Calcium: 107mg | Iron: 4mg
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Reader Interactions


  1. Taylor says

    It looks like in the picture some red bell pepper or chili pepper was used. Did you decide to omit this from the recipe? I don’t see any on the list.

  2. Darryl says

    5 stars
    Delicious healthy high protein and meatless meal! I made this recipe today and I’ll definitely be making it again. I used a lemon instead of lime and I didn’t add the cheese. So good!

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