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Butternut Squash Lentil Soup

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Lentil Soup with Butternut and Kale is comforting and nutrient-dense, thanks to the butternut squash, lentils, kale, and leeks.

Lentil Soup with Butternut and Kale

Butternut Squash Lentil Soup

This vegetarian butternut squash lentil soup is like a bowl of comfort – the perfect way to warm up on a cold night. This colorful soup, made with healthy ingredients, tastes delicious. The cooked leeks give complexity to the body of the soup. For even more lentil soup recipes, try my Lebanese Lentil Soup, Red Lentil Soup with Spinach, and Instant Pot Chicken and Lentil Soup.

Butternut Lentil Soup

This soup is also dairy-free, gluten-free and vegan. It’s all made in one pot and freezes great. Leftovers are perfect for lunch.

Do lentils need to be soaked?

No, lentils do not need to be soaked like beans do, which saves a lot of time.

Are you supposed to peel butternut squash before cooking?

Yes, it’s best to peel butternut squash before cooking since the skin can be very tough. If you’re short on time, buy your butternut squash peeled and pre-cut from the supermarket.

How to Freeze Lentil Soup:

This butternut squash, kale, and lentil soup is great for meal prep. It freezes wonderfully, so you can save it for dinner on a night when you don’t have time to cook. Freeze the soup in glass food containers or in zip-locked bags laid flat in your freezer for up to three months.

Thaw the soup overnight in the refrigerator and reheat in the microwave or on the stove. If you forget to thaw the night before, you can microwave the frozen soup in 30-second intervals, stirring in between each interval.

Butternut Squash Lentil Soup Variations:

  • Sub sweet potato for the butternut squash if you prefer.
  • Feel free to use curly kale if you can’t find Lacinato kale, also known as Tuscan kale. You can also switch the kale for another leafy green like spinach or Swiss chard.

Lentil Soup with Butternut and Kale with a spoonLentil Soup with Butternut and Kale

More Lentil Recipes You’ll Love:

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Butternut Squash Lentil Soup Recipe

4.94 from 45 votes
Lentil Soup with Butternut and Kale is comforting and nutrient-dense, thanks to the butternut squash, lentils, kale, and leeks.
Course: Dinner, Lunch
Cuisine: American
Lentil Soup with Butternut and Kale
Prep: 15 minutes
Cook: 50 minutes
Total: 1 hour 5 minutes
Yield: 6 servings
Serving Size: 1 1/3 cups


  • 1/2 tablespoon olive oil
  • 1 large onion, diced
  • 1 medium carrot, diced
  • 2 leeks, white part only, cleaned and chopped
  • 1 celery stalk, diced
  • 2 tablespoons tomato paste
  • 6 cups vegetable broth
  • 1 pound peeled and diced butternut, 1/2-inch dice
  • 2 ounces green lentils, (1/3 cup)
  • 1 bay leaf
  • 1/2 teaspoon kosher salt
  • black pepper
  • 3 cups packed chopped lacinato kale, stems removed


  • Heat a heavy pot or Dutch oven over medium heat.
  • When hot, add oil, then add onion, carrots, leeks and celery, reduce heat and cook about 4 to 5 minutes, stirring.
  • Add the tomato paste and cook 2 minutes, stirring.
  • Add the broth, bay leaf and lentils and bring to a boil.
  • Reduce the heat, cover and simmer until halfway cooked, 20 minutes.
  • Add the butternut and cook until tender, about 15 minutes more. Discard the bay leaf, season with salt and pepper, to taste.
  • Add the kale and cook 7 minutes longer until the kale is tender.

Last Step:

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To Freeze: Let the soup cool then transfer to a freezer-safe container. Keep frozen for up to 3 months.
To reheat, transfer to the refrigerator the night before then reheat on the stove or microwave.


Serving: 1 1/3 cups, Calories: 122 kcal, Carbohydrates: 25 g, Protein: 4 g, Fat: 1.5 g, Saturated Fat: 0.5 g, Sodium: 309.5 mg, Fiber: 7 g, Sugar: 8 g