Hearty Lentil Soup with Kale and Sweet Potatoes

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Packed with earthy lentils, sweet potatoes, and vibrant kale, this hearty soup is pure comfort in a bowl. It’s nourishing, flavorful, and exactly what you need on a chilly evening.

This Lentil Soup with Kale and Sweet Potatoes is inspired by Egyptian lentil soup and has become a staple in our home for good reason. Earthy lentils, tender sweet potatoes, and bright kale come together in a comforting bowl that’s as nourishing as it is delicious.

Here’s what makes this soup special: I sauté all the vegetables before adding them to the pot. This simple step gives the leeks, celery, carrots, and sweet potatoes a toasted, caramelized flavor that adds incredible depth. Sautéing the sweet potatoes is especially important—it transforms their flavor and texture completely. And by cutting them into larger chunks, they hold their shape beautifully in the soup instead of turning to mush.

Lentil Soup with Kale Ingredients

Lentil Soup With Kale and Sweet Potatoes

  • Olive Oil: Provides a smooth and fruity foundation, enhancing the overall richness of the soup.
  • Leek Stalks: Offer a mild onion-like flavor, adding a savory and aromatic touch to the soup.
  • Celery Sticks: Contribute a crisp and earthy note, providing depth to the soup’s flavor profile.
  •  Carrots: Sweet and tender carrots add a natural sweetness and vibrant color to the soup.
  • Sweet Potato: Adds a hint of sweetness and creaminess, creating a wholesome and hearty base for the soup.
  • Brown Lentils: Protein-rich and hearty, lentils add substance and thickness to the soup.
  • Kale: Adds a nutritious and vibrant element, bringing a slight bitterness and hearty texture to the soup.
  • Spice Blend: A harmonious blend of cumin, coriander, turmeric, and cinnamon forms the soulful spice mix for this Lentil Soup with Kale
  • Garlic Sauce:  This Lentil Soup is accompanied by Kale, bringing vibrant flavors. Olive oil forms the velvety base, while minced garlic adds a spicy kick. Fresh cilantro or parsley contributes an herbaceous touch, and a splash of lemon juice imparts a zesty brightness. Drizzled over the soup before serving, this garlic-infused sauce elevates each spoonful, adding richness and a burst of fresh, citrusy goodness.
  • Garnish Sumac (Optional): A pinch of Sulmac adds a tangy, citrusy flavor, elevating the soup with a unique touch.

Personalize Your Lentil Soup

Feel free to make this recipe your own! Here are some easy swaps:

  • Lentils – Brown lentils are classic, but try green for a slightly peppery flavor, red for creaminess, or black Beluga lentils for a nuttier taste. Chickpeas or split peas work great, too.
  • Potatoes – Russet potatoes will thicken the soup, red potatoes stay firmer, and sweet potatoes add natural sweetness (my favorite!).
  • Greens – Swap the kale for spinach (wilts quickly), Swiss chard (colorful and tender), or collard greens (heartier texture).
  • Cooking tip: Remember that red lentils and spinach cook much faster than brown lentils and heartier greens, so adjust your timing accordingly.

What to Serve with Lentil Soup

This soup, along with others like Bissara soup and Egyptian lentil soup, is best served alongside warm, crusty bread for dipping and soaking up every flavorful spoonful.

  • Pita Bread: Warm, fluffy pita is perfect for scooping up the soup. My pita bread recipe is easier than you think and tastes incredible fresh from the oven.
  • Algerian Bread: This Algerian bread has a beautiful golden crust and soft interior that’s ideal for dunking. The subtle flavor complements the earthy lentils perfectly.
  • Simple Green Salad: A crisp salad with lemon vinaigrette adds freshness and cuts through the richness of the soup.
  • Cheese and Olives: A simple side of feta cheese, olives, and sliced cucumbers makes this feel like a complete Mediterranean meal.

My go-to? The pita bread is perfect for soaking up that flavorful broth!

Storing and Reheating Your Lentil Soup

Lentil soup is as practical as it is delicious, especially considering its shelf life. If you’ve made a large batch, you’re in luck! Lentil soup stores beautifully.

  • Storage: Once the soup has cooled to room temperature, transfer it to airtight containers. Refrigerate and enjoy within 3-4 days. To extend its shelf life, consider freezing it.
  • Freezing: Lentil soup freezes exceptionally well. Pour it into freezer-safe bags or containers, leaving some space at the top as the soup will expand when frozen. Seal it tightly, label it with the date, and store it. For optimal taste, consume frozen lentil soup within 2-3 months.
  • Reheating: When you’re ready to relish your soup again, thaw it in the refrigerator overnight if it’s frozen. For a quick thaw, immerse the freezer bag or container in a bowl of cold water.
  • To reheat, pour the soup into a pot and warm it over medium heat, stirring occasionally until heated through. If the soup has thickened after freezing, add a splash of water or broth to get your desired consistency. Please always make sure the soup is piping hot before serving.
How to Make Hearty Lentil Soup with Kale and Sweet Potatoes

Step-by-Step Instructions

1.

Sauté the Vegetables

Heat 2-3 tablespoons of olive oil in a large pot over medium-high heat. Add the chopped leeks and sauté for 2 minutes until they start to soften. Add the chopped celery, carrots, and sweet potatoes. Continue sautéing for another 3 minutes, stirring occasionally, until the vegetables begin to soften and develop golden-brown edges.
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2.

Add the Spices and Lentils

Add the cumin, coriander, turmeric, cinnamon, salt, and black pepper to the pot. Stir well to coat all the vegetables with the spices—this step is key for building flavor. Add the lentils and sauté for 2 minutes, stirring frequently, so the lentils toast slightly and absorb all those aromatic spices


Pour in the water and stir to combine everything. Bring the mixture to a boil over high heat, then reduce the heat to medium-low. Cover and simmer for about 30 minutes, stirring occasionally, until the lentils are tender and the vegetables are cooked through. The soup should thicken to a hearty consistency. If it gets too thick, add a bit more water.
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3.

Make the Garlic-Lemon Sauce

While the soup simmers, prepare the garlic sauce. Heat 2 tablespoons of olive oil in a small pan over medium heat. Add the minced garlic and sauté for about 1 minute until fragrant and just starting to turn golden—don't let it burn. Stir in the chopped cilantro (or parsley) and lemon juice. Remove from heat and set aside.
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4.

Add the Kale and Finish the Soup

Once the lentils and vegetables are tender, stir in the chopped kale and the prepared garlic sauce. The kale will look like a lot at first, but don't worry—it wilts down quickly. Simmer uncovered for another 3 minutes, stirring once or twice, until the kale is wilted and tender and all the flavors have melded together. Taste and adjust seasoning with more salt, pepper, or lemon juice if needed.
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5.

Serve and Enjoy

Turn off the heat and let the soup rest for a minute or two—this helps the flavors settle. Ladle the soup into bowls and sprinkle with sumac for a tangy, citrusy kick if you'd like. Serve warm with your favorite bread for dipping. Enjoy!
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Ingredients:

1X 2X 3X
Adjust Servings
3 tablespoons of olive oil
2 leek stalks, chopped, washed, and dried
2 small celery sticks, chopped
3 small carrots, chopped
1 medium sweet potato, chopped
1 teaspoon cumin
1 teaspoon coriander
½ teaspoon turmeric
½ teaspoon cinnamon
1 tablespoon kosher salt or to your taste
1/2 teaspoon black pepper
1 ½ cup lentil, washed
7 cups of water or broth
3 cups of kale, chopped
1/2 teaspoon sumac (optional, for garnish)
For the garlic sauce:
1 tablespoon olive oil
4 cloves garlic (minced)
¼ cup chopped cilantro or parsley
¼ cup lemon juice

Preparation

1
Sauté the Vegetables
Heat 2-3 tablespoons of olive oil in a large pot over medium-high heat. Add the chopped leeks and sauté for 2 minutes until they start to soften. Add the chopped celery, carrots, and sweet potatoes. Continue sautéing for another 3 minutes, stirring occasionally, until the vegetables begin to soften and develop golden-brown edges.
2
Add the Spices and Lentils
Add the cumin, coriander, turmeric, cinnamon, salt, and black pepper to the pot. Stir well to coat all the vegetables with the spices—this step is key for building flavor. Add the lentils and sauté for 2 minutes, stirring frequently, so the lentils toast slightly and absorb all those aromatic spices Pour in the water and stir to combine everything. Bring the mixture to a boil over high heat, then reduce the heat to medium-low. Cover and simmer for about 30 minutes, stirring occasionally, until the lentils are tender and the vegetables are cooked through. The soup should thicken to a hearty consistency. If it gets too thick, add a bit more water.
3
Make the Garlic-Lemon Sauce
While the soup simmers, prepare the garlic sauce. Heat 2 tablespoons of olive oil in a small pan over medium heat. Add the minced garlic and sauté for about 1 minute until fragrant and just starting to turn golden—don't let it burn. Stir in the chopped cilantro (or parsley) and lemon juice. Remove from heat and set aside.
4
Add the Kale and Finish the Soup
Once the lentils and vegetables are tender, stir in the chopped kale and the prepared garlic sauce. The kale will look like a lot at first, but don't worry—it wilts down quickly. Simmer uncovered for another 3 minutes, stirring once or twice, until the kale is wilted and tender and all the flavors have melded together. Taste and adjust seasoning with more salt, pepper, or lemon juice if needed.
5
Serve and Enjoy
Turn off the heat and let the soup rest for a minute or two—this helps the flavors settle. Ladle the soup into bowls and sprinkle with sumac for a tangy, citrusy kick if you'd like. Serve warm with your favorite bread for dipping. Enjoy!

Nutrition Information

The information shown is an estimate provided by an online nutrition calculator. It should should not be considered a substitute for a professional nutritionist's advice.
See our full nutrition disclosure here.

rana
By Rana

Thanks for visiting my Mediterranean food blog and welcome to my virtual kitchen! Here, you’ll find mouth-watering, wholesome, and nutritious Mediterranean recipes that will change the way you view cooking.

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    2 Comments
    • Maysa odeh

      I made this with spinach, and wow was I blown away. My picky four year old gives it two thumbs up! Sure to become a staple in our home <3 As always, recipe was foolproof with perfect measurements.

    • Sandra

      Absolutely Love this recipe super easy and good to make on a cold day. One of my good go too the whole family loves.

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