Butternut Squash and Lentil Soup

Featured in: Seasonal Cooking Ideas

This comforting bowl brings together roasted butternut squash and tender red lentils, simmered with carrots, onions, and a warming spice blend of cumin, coriander, turmeric, and cinnamon. The roasting process deepens the squash's natural sweetness, while red lentils melt into the broth creating a velvety texture without any dairy. A splash of lemon brightens the earthy flavors, and fresh cilantro adds a pop of color. Perfect for meal prep, this soup actually tastes better the next day as the spices continue to develop.

Updated on Wed, 28 Jan 2026 10:19:00 GMT
Golden roasted butternut squash and lentil soup steaming in a rustic bowl, garnished with fresh cilantro and a lemon wedge. Save to Pinterest
Golden roasted butternut squash and lentil soup steaming in a rustic bowl, garnished with fresh cilantro and a lemon wedge. | spoonmargin.com

I discovered this butternut squash and lentil soup recipe during a particularly rainy October weekend when the markets were overflowing with autumn squash. The warm spices filled my kitchen with such comforting aromas that my neighbor actually knocked on my door to ask what that "heavenly smell" was. Something magical happens when butternut squash roasts and then meets those tiny red lentils – they practically melt together into velvety perfection.

Last winter, I brought a thermos of this soup to a friend who was recovering from surgery, and she called me immediately after trying it to say it was the first thing that had tasted good to her in weeks. The warming spices and gentle heat from the chili flakes seemed to awaken her appetite, and we joked that this soup should be prescribed by doctors. Now whenever the temperature drops below 50, my phone inevitably pings with a message asking if I'm making "that soup" anytime soon.

Ingredients

  • Butternut Squash: Look for one with a matte skin rather than glossy, which often indicates it was harvested too early and might lack sweetness.
  • Red Lentils: These little gems cook quickly and practically dissolve into the soup, creating that perfect thick consistency without hours of simmering.
  • Spice Blend: The combination of cumin, coriander, turmeric, and cinnamon might seem unusual, but trust me, they create a complex warmth that elevates this from simple to spectacular.
  • Lemon Juice: I learned the hard way that adding this at the end rather than during cooking makes all the difference – it brightens the entire pot and cuts through the earthy lentils beautifully.

Instructions

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Roast the Butternut:
Toss those squash cubes with olive oil, salt and pepper before spreading them on a baking sheet. The magic happens at 400°F for about 25 minutes when the edges caramelize slightly, concentrating the natural sweetness.
Build Your Flavor Base:
While the squash roasts, sauté the onions and carrots until they soften and become translucent. This is the foundation of your soup, so let them take their time.
Bloom the Spices:
Add the garlic and spices to the pot and stir constantly for about a minute. You'll know they're ready when the fragrance fills your kitchen and makes you smile involuntarily.
Combine and Simmer:
Once you add the lentils, roasted squash, and broth, let everything bubble gently for about 15 minutes. Watch how the lentils slowly break down and thicken everything.
Blend to Your Liking:
I prefer leaving some texture in mine, so I pulse with an immersion blender rather than fully puréeing it. The little bits of roasted squash that remain intact are like hidden treasures in each spoonful.
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Hearty butternut squash and lentil soup served beside warm naan bread for dipping on a cozy wooden table. Save to Pinterest
Hearty butternut squash and lentil soup served beside warm naan bread for dipping on a cozy wooden table. | spoonmargin.com

I still remember the first time I served this soup at a casual dinner party where one guest was vegan, another was gluten-free, and I was panicking about pleasing everyone. As conversation flowed and bowls were emptied, I realized nobody was thinking about what the soup didn't contain – they were too busy enjoying what it did. The moment of silence that fell when everyone took their first spoonful was all the validation I needed to add this recipe to my permanent collection.

Make It Your Own

Some nights when I want something more substantial, I add a can of coconut milk in place of one cup of the vegetable broth, and the result is luxuriously creamy with a subtle sweetness that plays beautifully against the spices. On particularly cold evenings, I've been known to stir in a spoonful of harissa paste for extra warmth and complexity. The recipe welcomes these little tweaks and adaptations, which is partly why it never feels repetitive even when I make it regularly throughout the colder months.

Storage and Freezing

This soup actually improves after sitting in the refrigerator overnight, as the flavors meld and deepen – making it perfect for meal prep. I portion mine into single-serving glass containers that stack neatly in the freezer, creating my own little winter emergency kit. Just last month during an unexpected snowstorm, I was incredibly grateful to my past self for this foresight as I defrosted a container and had a nourishing meal ready in minutes while the wind howled outside.

Serving Suggestions

While this soup is certainly satisfying on its own, I've discovered a few accompaniments that elevate it from a simple meal to something that feels special enough for company. A swirl of yogurt (dairy or plant-based) adds a cool, creamy contrast to the warm spices and creates a beautiful pattern when you drag the tip of a spoon through it.

  • Try serving with warm naan bread for scooping up the thicker portions of soup, especially satisfying when the weather outside is frightful.
  • A simple side salad of arugula dressed with lemon juice and olive oil provides a peppery freshness that complements the soup beautifully.
  • Remember to bring the soup to room temperature before freezing to prevent ice crystals from forming and affecting the texture.
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Vibrant orange butternut squash and lentil soup blended smooth, with a swirl of olive oil and fresh herbs. Save to Pinterest
Vibrant orange butternut squash and lentil soup blended smooth, with a swirl of olive oil and fresh herbs. | spoonmargin.com

This butternut squash and lentil soup has become my edible equivalent of a warm hug, bringing comfort on days when nothing seems to go right. I hope it finds its way into your regular rotation too, adapting to your preferences and becoming a recipe that feels uniquely yours.

Recipe FAQs

Can I make this soup ahead of time?

Absolutely. This soup stores beautifully in the refrigerator for up to 5 days and freezes well for up to 3 months. The flavors actually deepen and improve after sitting overnight.

Do I have to roast the squash first?

Roasting concentrates the natural sweetness and adds depth, but you can skip it by adding raw cubes directly to the pot. Increase simmering time by about 10-15 minutes until everything is tender.

Can I use other types of lentils?

Red lentils work best because they break down quickly creating a creamy texture. Green or brown lentils hold their shape better, resulting in a chunkier soup with longer cooking time needed.

How can I make this soup extra creamy?

Stir in a splash of coconut milk, heavy cream, or full-fat coconut yogurt before blending. For a dairy-free option, adding a peeled potato during cooking also creates extra creaminess.

What can I serve with this soup?

Crusty bread, naan, or roasted chickpeas make excellent toppings. A dollop of yogurt or swirl of coconut milk adds richness. Serve with a simple green salad for a complete meal.

Is this soup suitable for meal prep?

Yes, it's ideal for batch cooking. Portion into containers and refrigerate or freeze. Reheat gently on the stovetop, adding a splash of broth or water if it has thickened too much.

Butternut Squash and Lentil Soup

Warming bowl featuring roasted butternut squash, red lentils, and aromatic spices blended to creamy perfection.

Prep Time
15 min
Time to Cook
40 min
Overall Time
55 min
Recipe by Zoe Murphy


Skill Level Easy

Cuisine International

Makes 4 Portions

Dietary Notes Vegan-Friendly, No Dairy, No Gluten

What You'll Need

Vegetables

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

Legumes

01 3/4 cup red lentils, rinsed

Spices

01 1 teaspoon ground cumin
02 1/2 teaspoon ground coriander
03 1/2 teaspoon ground turmeric
04 1/4 teaspoon ground cinnamon
05 1/4 teaspoon chili flakes, optional
06 Salt and black pepper to taste

Liquids and Oils

01 2 tablespoons olive oil
02 5 cups vegetable broth

Finishing

01 Juice of 1/2 lemon
02 Fresh cilantro or parsley, chopped for garnish

How to Make It

Step 01

Prepare the oven and roast squash: Preheat oven to 400°F. Toss butternut squash cubes with 1 tablespoon olive oil, salt, and pepper. Spread on a baking sheet in a single layer and roast for 25 minutes until golden and tender.

Step 02

Sauté aromatics: In a large pot, heat remaining 1 tablespoon olive oil over medium heat. Add diced onion and sliced carrots, sautéing for 5 minutes until softened.

Step 03

Bloom spices: Add minced garlic, cumin, coriander, turmeric, cinnamon, and chili flakes if using. Cook for 1 minute until fragrant.

Step 04

Incorporate lentils: Add rinsed red lentils to the pot and stir to coat with the aromatic oil mixture.

Step 05

Build the soup: Add roasted butternut squash and vegetable broth to the pot. Bring to a boil, then reduce heat and simmer for 15 minutes until lentils are soft and tender.

Step 06

Blend and finish: Remove from heat. Using an immersion blender, blend the soup until smooth, or leave slightly chunky according to preference. Stir in lemon juice and adjust seasoning with salt and pepper.

Step 07

Serve: Ladle soup into bowls and garnish with chopped fresh cilantro or parsley.

Tools Needed

  • Chef's knife
  • Cutting board
  • Baking sheet
  • Large soup pot
  • Immersion blender or standard blender
  • Ladle

Nutrition Details (per portion)

Provided for general reference—always check with your healthcare advisor.
  • Calorie Count: 260
  • Fat Content: 6 g
  • Carbohydrates: 44 g
  • Proteins: 9 g