Butternut Squash and Lentil Soup

Featured in: Warm Rustic Bowls & Kitchen Sides

This hearty soup brings together the natural sweetness of roasted butternut squash with protein-packed red lentils, creating a silky texture that's both satisfying and nutritious. Warming spices like cumin, coriander, and turmeric add depth, while a splash of bright lemon juice balances the richness.

Ready in just over an hour, this one-pot meal is perfect for meal prep and tastes even better the next day as flavors meld together.

Updated on Wed, 21 Jan 2026 10:37:00 GMT
A warm bowl of creamy Butternut Squash and Lentil Soup garnished with fresh cilantro. Pin it
A warm bowl of creamy Butternut Squash and Lentil Soup garnished with fresh cilantro. | flourharbor.com

Last November, when my heating decided to take an unscheduled vacation, I found myself standing in a drafty kitchen with a butternut squash that had been sitting on my counter for weeks. I roasted it out of desperation, threw in some red lentils I'd bought on a health kick months earlier, and ended up with something that made the cold apartment feel almost intentional. Now this soup is my go-to whenever life feels overwhelming, which is fairly often these days.

My sister stayed over during a particularly gray week last winter, and I made a double batch of this soup. We ate it curled under blankets while watching terrible movies, and she kept asking what I put in it because she's usually not a fan of anything remotely healthy. She texted me the recipe the next day, which is basically her highest form of compliment.

Ingredients

  • Butternut squash: Roasting it first concentrates the natural sugars and gives the soup a deeper, more complex flavor profile than you'd get from simmering raw cubes.
  • Red lentils: These break down beautifully during cooking and act as a natural thickener, plus they add protein without any heavy texture.
  • Carrots and onion: The foundation that provides sweetness and depth, sautéed until softened before the spices join the party.
  • Garlic: Add it after the onions have started softening so it doesn't burn and turn bitter.
  • Ground spices: Cumin, coriander, turmeric, cinnamon, and smoked paprika work together to create that cozy, warming feeling.
  • Vegetable broth and water: The broth provides the base flavor while water keeps it from becoming too intense or salty.
  • Olive oil: Use one tablespoon for roasting the squash and another for sautéing the vegetables.
  • Lemon juice: This brightens everything at the end and cuts through the richness.
  • Fresh herbs: Cilantro or parsley sprinkled on top adds a fresh pop of color and flavor.

Instructions

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Roast the squash:
Preheat your oven to 400°F, toss the cubed squash with olive oil, salt, and pepper, then spread it on a parchment-lined baking sheet and let it roast for 25 to 30 minutes until golden and tender.
Sauté the vegetables:
While the squash roasts, heat the remaining olive oil in a large pot over medium heat, add the onion and carrots, and sauté for about 5 minutes until softened before stirring in the garlic for one final minute.
Wake up the spices:
Add all the ground spices to the pot and cook for just 30 seconds until they become fragrant, which happens faster than you expect.
Simmer everything together:
Add the roasted squash, rinsed lentils, broth, and water, bring to a boil, then reduce heat and simmer uncovered for 20 minutes until the lentils are completely soft.
Blend until smooth:
Remove the pot from heat and use an immersion blender to puree the soup until silky smooth, or carefully blend in batches if using a standard blender.
Finish with brightness:
Stir in the lemon juice, taste the soup, and adjust the seasoning as needed before ladling into bowls and topping with fresh herbs.
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Roasted butternut squash and red lentils create a velvety, orange-hued soup in a rustic bowl. Pin it
Roasted butternut squash and red lentils create a velvety, orange-hued soup in a rustic bowl. | flourharbor.com

This soup has become my Sunday ritual during colder months. I make a batch while catching up on podcasts, and the smell of roasting squash and warming spices somehow makes the week ahead feel less daunting.

Making It Your Own

Sometimes I stir in a quarter cup of coconut milk before blending if I want something extra luxurious, though the soup is plenty creamy on its own. A teaspoon of freshly grated ginger added along with the garlic works wonders if your stomach needs extra TLC, which mine frequently does during stressful weeks.

Serving Suggestions

This soup demands crusty bread for dipping, even if you are gluten-free because there are actually decent options now. A dollop of plain yogurt on top adds a nice tangy contrast, though I usually skip it to keep things vegan. It also pairs beautifully with a simple green salad dressed with lemon vinaigrette.

Storage and Meal Prep

The soup keeps beautifully in the refrigerator for up to five days and actually tastes better on day two or three once the flavors have had time to really get to know each other. It also freezes exceptionally well for those nights when cooking feels like climbing a mountain. Portion it into freezer-safe containers and you will thank yourself later.

  • Leave a little space at the top of containers since liquid expands when frozen.
  • Reheat gently over medium-low heat, stirring occasionally to prevent scorching at the bottom.
  • If the soup seems too thick after thawing, thin it with a splash of broth or water.

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A spoon dips into savory Butternut Squash and Lentil Soup, steam rising beside crusty bread. Pin it
A spoon dips into savory Butternut Squash and Lentil Soup, steam rising beside crusty bread. | flourharbor.com

There is something deeply restorative about a bowl of this soup, like a warm hug for your insides when the world feels cold and chaotic.

Recipe FAQs

Can I make this soup ahead of time?

Absolutely. This soup keeps well in the refrigerator for up to 5 days and freezes beautifully for up to 3 months. The flavors actually deepen and improve after a day or two.

What's the best way to achieve the smoothest texture?

Roasting the squash first caramelizes the natural sugars, adding depth. Use an immersion blender directly in the pot for the smoothest results, or work in batches with a standard blender—just be careful with hot liquids.

Can I use other types of lentils?

Red lentils work best because they break down completely during cooking, creating that velvety consistency. Yellow lentils are a good substitute, but green or brown lentils won't soften enough for a smooth puree.

How do I adjust the spice level?

The smoked paprika adds gentle warmth without heat. For more kick, increase the paprika or add a pinch of cayenne. You can also include fresh ginger with the garlic for added zing.

What toppings work well with this soup?

Fresh cilantro or parsley adds brightness. A dollop of coconut yogurt, a drizzle of olive oil, toasted pumpkin seeds, or crusty gluten-free bread make excellent additions for extra texture and richness.

Is this suitable for meal prep?

Perfect for meal prep. Make a batch on Sunday and portion into containers for easy lunches throughout the week. The soup thickens when chilled—simply thin with a splash of water or broth when reheating.

Butternut Squash and Lentil Soup

A rich, creamy blend of roasted squash and red lentils with aromatic spices for ultimate comfort.

Prep Time
20 mins
Cook Time
40 mins
Total Duration
60 mins
Created by Brooke Ward


Skill Level Easy

Cuisine International

Makes 4 Portions

Diet Preferences Plant-Based, No Dairy, Free from Gluten

Ingredient List

Vegetables

01 1 medium butternut squash (about 2 lbs), peeled, seeded, and cubed
02 2 medium carrots, peeled and chopped
03 1 large onion, chopped
04 3 cloves garlic, minced

Legumes

01 3/4 cup red lentils, rinsed

Broth & Liquids

01 4 cups vegetable broth (gluten-free if needed)
02 1 cup water

Spices & Seasonings

01 1 tsp ground cumin
02 1/2 tsp ground coriander
03 1/2 tsp ground turmeric
04 1/4 tsp ground cinnamon
05 1/4 tsp smoked paprika
06 Salt and black pepper, to taste

Finishing

01 2 tbsp olive oil
02 Juice of 1/2 lemon
03 Fresh cilantro or parsley, chopped (optional, for serving)

Directions

Step 01

Roast the Squash: Preheat oven to 400°F. Line a baking sheet with parchment paper. Toss butternut squash cubes with 1 tablespoon olive oil, salt, and pepper. Spread on the baking sheet and roast for 25-30 minutes, until golden and tender.

Step 02

Prepare the Base: Meanwhile, heat the remaining 1 tablespoon olive oil in a large pot over medium heat. Add onion and carrots; sauté 5 minutes until softened. Add garlic and cook 1 minute more.

Step 03

Toast the Spices: Stir in cumin, coriander, turmeric, cinnamon, and smoked paprika; cook for 30 seconds until fragrant.

Step 04

Simmer the Soup: Add roasted squash, red lentils, vegetable broth, and water. Bring to a boil, then reduce heat and simmer uncovered for 20 minutes, or until lentils are soft.

Step 05

Puree the Soup: Remove from heat. Use an immersion blender to puree the soup until smooth, or carefully blend in batches.

Step 06

Finish and Serve: Stir in lemon juice. Taste and adjust seasoning as needed. Ladle into bowls and garnish with fresh cilantro or parsley if desired.

Equipment Needed

  • Baking sheet
  • Large pot
  • Immersion blender (or standard blender)
  • Chef's knife
  • Cutting board

Allergy Details

Read each ingredient label for allergens and talk to a healthcare provider if unsure.
  • Contains no major allergens.
  • If using store-bought broth, check for gluten or soy if sensitive.

Nutrition info (per serving)

Nutrition stats are for reference and don't serve as medical advice.
  • Calories: 240
  • Fat Content: 5 g
  • Carbohydrates: 42 g
  • Protein: 8 g