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Home / Mains / Slow Cooker Lentil Soup

Slow Cooker Lentil Soup

This recipe is: dairy freeegg freenut free

This slow cooker lentil soup is super easy to make and can last all week. It’s delicious and hearty, making it perfect for fall and winter.

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A couple bowls of slow cooker lentil soup garnished with chopped fresh parsley.

Why I love this slow cooker lentil soup

And just like that, it’s cold outside. It happens every year. The summer feels like it’s taking forever, and then all of a sudden I need slippers in the morning and we can’t even have the windows open. I’m not complaining. I love this cold, but some soup definitely helps.

When we were in Kazakhstan, one of the restaurants served this amazing lentil soup. It seemed like one of the best things I’d ever tasted, especially when we were struggling to find groceries some days.

It was so savory and so flavorful, but I still haven’t nailed down what made it so great. Even this slow cooker lentil soup doesn’t compare, but, it’s amazing, in it’s own way. 

Either way, this soup is insanely easy to make, and it’s hearty, making it perfect for fall. I made this and we ate it for lunch all week.

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A slow cooker full of lentils and carrots.

Here’s what you’ll need to make it

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Close up of lentil soup on a spoon.

How to make slow cooker lentil soup

Add ingredients to slow cooker. Stirring everything together well.

Cook on low for 8 – 10 hours. You can also cook on high for 4-6 hours.

Serve. Make sure you remove the bay leaf and thyme stems before serving.

A ladle scooping a bowl of lentil soup from a crockpot.

frequently asked questions: slow cooker lentil soup

Do you have to soak lentils before cooking?

Dried lentils need to absorb liquids to reconstitute themselves, soaking them does help speed along the process but for this recipe the lentils will be in the slow cooker with enough liquids to get the job done. No need to soak the lentils here.

Can you overcook lentils?

Yes you can, they will become mushy and grainy if overcooked. Make sure to remove from the slow cooker when cooking time is up, or at least turn to warm and serve right away.

Why are my lentils still hard after cooking?

If you have cooked your lentils fully they should no longer be hard. You can try extending the cooking time, but make sure you have been storing them properly and that they are not too old because if they are old enough they will not soften properly.

A bowl of lentil soup with carrots.

More slow cooker recipes

  • Slow cooker black beans
  • White chicken chili
  • Grape jelly meatballs
  • Slow cooker beef tacos
  • Pork and sauerkraut

More dairy free soups

  • Garden vegetable soup
  • Sausage and kale soup
  • Minestrone soup
  • Red lentil soup
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Slow Cooker Lentil Soup

★★★★★

5 from 2 reviews

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This slow cooker lentil soup is super easy to make and can last all week. It’s delicious and hearty, making it perfect for fall and winter.

  • Author: Melissa Belanger
  • Prep Time: 10 minutes
  • Cook Time: 8 hours
  • Total Time: 8 hours 10 minutes
  • Yield: 8 1x

Ingredients

Scale
  • 1 16-ounce package dried lentils
  • 1 cup diced sweet onion
  • 4 carrots, chopped
  • 4 celery stalks, chopped
  • 2 garlic cloves, minced
  • 2 sprigs fresh thyme
  • 1/4 cup tomato paste
  • 1 teaspoon ground cumin
  • 1 bay leaf
  • 7 cups broth
  • ¾ cup coconut milk
  • 1 teaspoon coarse salt
  • Black pepper, to taste

Instructions

  1. Place all ingredients in a slow cooker, stirring to combine.
  2. Cook on low for 8 – 10 hours (or high for 4 – 6).
  3. Remove bay leaf and thyme stems before serving.
  • Category: Main Course
  • Method: Slow Cooker

Nutrition

  • Serving Size:
  • Calories: 295
  • Sugar: 7.7 g
  • Sodium: 853.8 mg
  • Fat: 5.4 g
  • Saturated Fat: 4.1 g
  • Carbohydrates: 48.8 g
  • Fiber: 8.9 g
  • Protein: 15.7 g
  • Cholesterol: 0 mg

Keywords: slow cooker lentil soup, lentil soup, dairy free lentil soup, vegan lentil soup, easy lentil soup, lentil soup, lentil soup recipe, recipe for lentils soup, carrot and lentils soup, lentil vegetable soup, vegan lentil soup, how to make lentil soup, best lentil soup recipe, lentil and carrot soup

Did you make one of our recipes? Tag us on Instagram @simplywhisked #simplywhisked. We would love to see it.

Published: September 28, 2016. Updated: February 9, 2023.

This post contains affiliate links. I may earn commission from qualifying purchases at no additional cost to you. I will never recommend a product I don’t use or trust.

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Melissa from Simply Whisked
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I create dairy free recipes with simple ingredients because I know how hard living dairy free can be. I believe you can live a completely satisfying life without dairy, and I want to teach you how.

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25 recipes to FALL for this season

Get ready to fall in love with chilly weather and shorter days with fresh new recipes for autumn!

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