Slow-Cooker Red Lentil Soup

Slow-Cooker Red Lentil Soup

with Lemon and Rosemary

Recipe by
Reviewed by Arturs Arnicans
Prep Time: 10m
Cook Time: 4h
Total Time: 4h 10m
Servings: 6
Difficulty: Easy
4.9 (13 Reviews)
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Ingredients

Adjust servings:

Nutritional Information

278
Calories
3g
Fat
47g
Carbohydrates
16g
Protein
20g
Fiber
1320mg
Sodium
Slow-Cooker Red Lentil Soup

Recipe Description

Looking for a delicious, easy recipe to save dinner on a busy day? Look no further! This Slow-Cooker Red Lentil Soup recipe will do the work while you are on the go. Packed with veggies, red lentils and big flavor, it isn’t one pot, but it is efficient: You’ll sauté the onions, carrots, celery, and garlic before adding them along with lentils, vegetable stock and herbs to the slow cooker. Cook your lentils and veggies low and slow, then add in the lemon zest and juice. Throw together your favorite green salad and that’s dinner.

You can partially blend the soup with a hand blender for a smoother texture or mash it with a potato masher. I prefer to leave my soup on the chunky side, so I just give it a vigorous stir to help break the lentils. This dish is a perfect fit for both vegan and vegetarian diets. Enjoy!

To make the Slow-Cooker Red Lentil Soup, you will need the following ingredients:

Ingredients for Slow-Cooker Red Lentil Soup

Steps to make

  1. 1

    Saute onions

    4 min
    Step 1 - Slow-Cooker Red Lentil Soup

    Pour the olive oil In a large pan over medium heat, heat 1 tablespoon olive oil and add 2 diced onions. Sauté until softened, about 3 minutes.

  2. 2

    Add carrots and celery

    3 min
    Step 2 - Slow-Cooker Red Lentil Soup

    Add 2 diced carrots and 2 diced celery stalks and cook for 3 minutes.

  3. 3

    Add garlic and rosemary

    1 min
    Step 3 - Slow-Cooker Red Lentil Soup

    Stir in 2 finely diced garlic cloves and 2 teaspoons chopped rosemary leaves and cook for another 1 minute.

  4. 4

    Put vegetables, lentils, stock, and seasonings in your slow cooker

    1 min
    Step 4 - Slow-Cooker Red Lentil Soup

    Add the vegetables, 2 cups red lentils, 8 cups vegetable stock, ½ teaspoon salt, and
    ¼ teaspoon black pepper to the slow cooker and stir to combine.

  5. 5

    Cook

    4h
    Step 5 - Slow-Cooker Red Lentil Soup

    Cover with a lid and cook on low for 7 hours or high for 4 hours.

  6. 6

    Stir and add lemon zest and juice

    1 min
    Step 6 - Slow-Cooker Red Lentil Soup

    Give the soup a vigorous stir and then add lemon zest and lemon juice, and the remaining 1 teaspoon fresh rosemary. Taste and adjust for seasoning if needed. You can blend the soup at this stage if you wish.

  7. 7

    Serve

    Step 7 - Slow-Cooker Red Lentil Soup

    Serve hot and enjoy!

This Slow-Cooker Red Lentil Soup is the perfect dish to make on a busy day, calling for a few pantry staples, lemon and fresh rosemary. It’s nourishing, healthy and delicious. Made it? Let us know! Tag @cookmerecipes on Instagram and hashtag it #cookmerecipes

About the author

Nina Cole

Nina dreams of gender equality and for women all over the world to feel empowered and enjoy the same freedom she has. She’s a careful consumer, believing that by being more conscious about the way we live we can make the world a better place! Already a vegetarian, she uses animal products sparingly and tries to produce as little waste as possible. Most of her recipes are vegan as a result!

Recipe Reviews

Have you made this recipe? Share your experience and help other cooks!

★★★★★
★★★★★
4.9 out of 5 (13 reviews)
Ashley Johnson
April 23, 2025
Verified

Delicious soup ever!

Rebecca Smith
March 20, 2025
Verified

I tried this soup after a long day at work, and it was amazing. The flavors are so vibrant! I love how simple it was to prepare. I will definitely make this again soon.

Nacho
February 27, 2025
Verified

Delicious and easy!

Ursula Thompson
February 16, 2025
Verified

Superb comforting soup!

Paula Smith
January 31, 2025
Verified

Superb flavor, easy!

YummyDishes82
December 21, 2024
Verified

Quick and tasty!

Jessica Brown
October 24, 2024
Verified

This soup is amazing! After a long day at work, I threw everything in my slow cooker and came home to a warm, hearty meal. Perfectly cozy with a crunchy salad on the side. Totally worth it!

Penny
September 27, 2024
Verified

This soup is incredible! I made it on a busy day and it saved dinner. So flavorful and simple.

Avery
September 11, 2024
Verified

Super delicious and easy to make.

SavvyChef
August 21, 2024
Verified

Amazing! I whipped this up on a busy weekday. My husband loved it and said it felt like a warm hug. Will make it again for sure!

Zoe
July 27, 2024
Verified

Delicious! This soup took me back to my grandma's kitchen, where we would gather around the table after a long day. It's so simple and flavorful. I love how it warms me up on chilly evenings. Will make it again for sure!

Wes
June 16, 2024
Verified

Superb dinner choice!

Athina
March 18, 2024
Verified

I like this effortless soup recipe! Thanks for sharing!

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