Easy Crockpot Vegetable Lentil Soup Recipe

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Hearty, healthy and an instant family favorite. 

Easy Crockpot Vegetable Lentil Soup Recipe - FamilyFreshMeals.com


Lentil Soup starts to sound extra delicious to me as soon as the fall season approaches.  The absolute best way to make lentil soup is in the slow cooker.

This Easy Crockpot Vegetable Lentil Soup Recipe has been a family favorite ever since Big D was a baby. The soft veggies were perfect finger foods for her little fingers.  Ahhh the memories :)

Now that my girls are getting older, they ask for this soup all the time.  And I am MORE than happy to make this veggie packed soup for them. 

Easy Crockpot Vegetable Lentil Soup Recipe


4 cups lentils, rinsed and picked through
32 oz beef broth (or veggie broth to make vegetarian)
2 cups water
1 medium yellow onion, diced
2 cups carrots, sliced
1/2 cup celery, sliced
28 oz can diced tomatoes, undrained
1 large russet potato, diced
4-6  cloves garlic, minced
2-3 bay leaves (optional)
1/2 tsp salt
1/2 tsp black pepper


1. Place all ingredients in a 5-6 quart crockpot. Cook on LOW for 7-8 hours or until vegetables are tender.  Enjoy!

Do you want to pack the leftovers for lunch?

Check out my post on How to Pack Soup For Lunch (and keep it warm!)

Easy Crockpot Vegetable Lentil Soup Recipe - FamilyFreshMeals.com

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Corey, Darryl, Big D & Little D

3.6 from 9 reviews
Easy Crockpot Vegetable Lentil Soup Recipe
Prep time
Cook time
Total time
Serves: 6-8
  • 4 cups lentils rinsed and picked through
  • 32 oz beef broth
  • 2 cups water
  • 1 medium yellow onion, diced
  • 2 cups carrots, sliced
  • ½ cup celery, sliced
  • 28 oz can diced tomatoes, undrained
  • 1 large russet potato, diced
  • 4-6 cloves garlic, minced
  • 2-3 bay leaves (optional)
  • ½ tsp salt
  • ½ tsp black pepper
  1. Place all ingredients in a 5-6 quart crockpot. Cook on LOW for 7-8 hours or until vegetables are tender. Enjoy!

Here is what I used to make this Easy Crockpot Vegetable Lentil Soup Recipe



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  1. says

    Perfect for my boy who just started an ortho appliance. I’ve been hunting healthy soup recipes for our daily meals and lunchbox items. Thanks for this easy to make crockpot soup!

  2. Audrey says

    This was absolutely delicious!! Our whole apartment building smells amazing and it was so easy! Perfect for this fall day!

  3. Tressa says

    I am making this right now and it seems like there wont be enough liquid?? I am 4 hours into the cooking time, should I put more broth or is it supposed to be a thick soup?

    • Corey says

      If you like a soupier soup, you can add more water or broth. Lentil soup tends to be a a thick soup, but more liquid wouldn’t hurt anything if that is your taste :)

  4. Theresa says

    Hi Corey,

    If I don’t have a crockpot could I use my cast iron stove top dutch oven instead? Would you keep it on simmer in lieu of the low setting on a crockpot? Would you cook for the same length of time?

  5. Diana says

    Hi there! I really want to try this recipe tonight, but I’m short for time…do you think the recipe will work on high for 4 hours? Thanks!!

    • Corey says

      I think that should work. If you have a couple minutes to saute the thicker veggies to soften them a little bit before putting them into the crockpot, that might help too. Hope that helps!

  6. C. Olsen says

    Thanks for this recipe. The flavor is pretty good but I really don’t think it can be called a soup. It’s more like cooked lentils and vegetables with very little broth. To make it soupy, I’d reduce the lentils to 2 or 2 1/2 cups. I had to add 4 more cups of broth and it’s still not soupy. Will probably have to freeze the leftover lentils to add into other soups.

  7. Franklin says

    Thanks for the recipe! I added extra carrots and celery, and it came out almost too thick when I woke up this morning. Lentils absorbed more water than I thought. It turned out fine after I added 2 more cups of water. House smelled great!

  8. Mari says

    Awesome recipe! I made it two weeks ago but I used split peas (I thought I had lentils!) and it was so yummy. I’m making it again this weekend for my son’s first birthday party…. This time with lentils :)

  9. Jenny says

    Please post more recipes like this one! Do you have other bean soups or a split pea soup to share? I am on a gluten free diet and am always looking for options. Meat is okay if it’s in a soup or stew – just not noodles.

  10. Kim says

    This was delicious! The only modification I made was I used vegetarian broth.. it was flavorful and filling. A great meal, and another great option for my vegetarian teen! Thank you!

  11. Von Kruiser says

    I’ll say that this is not a good recipe. 4-6 cloves of garlic and the onion made the whole house stink to high heaven. Put it outside to finish cooking. As for your breath don’t plan on being in the same room with anyone.

    • Corey says

      Onion and garlic are so good for you! Sorry you don’t like the taste of those two things, they are a main ingredients for this recipe :)

  12. Cheryl says

    This calls for 4 cups of lentils, washed and picked through.
    Is this 4 cups before or after they are washed?
    There is a big difference!!!

  13. tammy says

    Made this on the weekend. the flavor is great but the lentils got so big they filled my 6qt slow cooker to the brim, I had never cooked dry lentils before even though I like them. I couldn’t even add broth in the pot so I have to dump them in my soup bowl and add broth. I joked with my partner that I was going to open a soup kitchen just to eat it all. live and learn. I will make this again, but half the lentils and I will soften the veggies first as the potatoes were still a little on the firm side for me even though I cooked them a longer than called for. Great blog TX

  14. Papa says

    Modified the recipe by using, 3 cups of Lentils and only 2 large Garlic cloves but added 1 TBS of Cider Vinegar and an additional cup of vegetable stock. Turned out great and not too thick or too soupy. Next time I’m going to try diced butternut squash instead of the potato. I think the recipe is a great one to experiment with and develop several favorable adaptations.

  15. Jennie says

    Oh my goodness! So good. I’m always looking for good winter soup recipes because I don’t eat meat so chili is out for me. I added garbanzo beans to mine and one extra can of beef broth. Thank you!

  16. paula says

    definitely needs more liquid than the recipe calls for,added 8 oz of water and 15oz of tomato…threw in some spinach, I thought it was really good

    • Corey says

      Yes, if you like a soupier soup, that’s a great idea to add in some more liquid. I LOVE your addition of spinach too :)

  17. paula says

    needs more liquid but it was really good, I added a cup of water and another 15oz can of diced tomatoes and I threw in a handful of spinach

  18. Nancy says

    Four cups of lentils! Way too much lentils to liquid! It turned out like the consistency of a thick chili. I will question portions should I make any of your recipes.

    • Corey says

      Yes Nancy, this is a thick and hearty soup. We love our lentil soup to be thick like chili. YUM! If you are looking for a soupier soup, feel free to add some more broth.

  19. Elizabeth says

    I just found this by googling “slow cooker lentil soup” and it sounds great! I am about to try it right now. I will add chopped kale because that’s how I always make lentil soup. :)

  20. Lauren says

    I followed the recipe and cooked on low for 8 hours and the lentils were still hard. What do you think I did wrong?

    • Corey says

      Where they just firm, or still hard like they feel when they are try? Lentils are meant to be a little firm. Mushy lentils are no fun :)

  21. says

    great recipe! Last time I made it I had to cook additional and add about 2+c of water, on the stove using the pressure cooker (15 minutes and it came out GREAT!). Trying in the crock pot on high this time, reduced lentils to 3c, I like it thick but it was a little too “goopy” with 4c. I also use 2 sweet potatoes, no other potato, and only 1/2 onion and 2 garlic cloves- makes it a bit more appetizing smell than the full onion and 4 garlic cloves. I love the idea to add ACV- think I’ll do that, too! As to serving, last time I made it we served about 12 bowls- AT LEAST! As it sat for a day or 2 we added more liquid as the lentils absorbed.


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