This Butternut Squash Lentil Soup Recipe is the kind of meal that turns a chilly evening into something worth looking forward to.
Sweet roasted squash, tender lentils, and warm spices simmer together into one deeply comforting pot.
I started making this soup years ago when my produce drawer was overflowing with squash and I needed something filling that didn’t require meat.
It quickly became one of the most requested recipes in my house.
The lentils add plenty of plant based protein, the squash brings natural sweetness, and a splash of lemon juice at the end wakes everything up.
It’s the kind of soup that tastes even better the next day.
I actually reach for this same warm spice blend when I make my Curried Butternut Squash Soup Recipe, and it works just as beautifully here.
| Quick Recipe Summary | |
|---|---|
| Prep Time | 15 minutes |
| Cook Time | 35 minutes |
| Total Time | 50 minutes |
| Servings | 6 servings |
| Difficulty Level | Easy |
Why You’ll Love This Butternut Squash Lentil Soup Recipe
This soup earns its spot in the weekly rotation because it asks so little of you and gives back so much.
One pot, simple pantry spices, and about fifty minutes are all it takes.
It also happens to check a lot of boxes at once. It’s hearty enough for dinner, healthy enough for lunch, and easy enough for a beginner cook to nail on the first try.
- Comes together in one pot in under an hour
- Naturally vegan, dairy free, and gluten free
- Loaded with fiber, plant based protein, and vitamin A
- Freezes beautifully for busy weeknights
- Made with affordable, easy to find ingredients
- Kid friendly and easy to customize with what you have on hand
Another favorite in my house: Lentil Spinach Soup Recipe
Ingredients
Every ingredient here plays a role, from the aromatics that build the base to the lemon juice that brightens the whole pot at the end.
Nothing fancy is required, just good, simple produce and pantry spices.
- 2 tablespoons olive oil
- 1 large yellow onion, diced
- 2 medium carrots, peeled and diced
- 2 celery stalks, diced
- 4 garlic cloves, minced
- 1 tablespoon fresh ginger, grated
- 1 teaspoon ground cumin
- 1 teaspoon ground coriander
- 1 teaspoon smoked paprika
- 1/4 teaspoon red pepper flakes, optional
- 4 cups butternut squash, peeled and cubed (about 1 medium squash)
- 1 cup dried French green lentils, rinsed (brown lentils work too)
- 1 can (14.5 ounces) diced tomatoes
- 6 cups vegetable broth
- 1 bay leaf
- 3 cups fresh baby spinach
- 2 tablespoons fresh lemon juice
- Salt and black pepper, to taste
- Fresh parsley, chopped, for garnish
I like buying dried lentils in bulk since they show up in so many of my recipes, including my Red Lentil Soup Recipe.
Kitchen Equipment Needed
You really only need a handful of tools to make this soup from start to finish.
A sturdy pot and a sharp knife will get you most of the way there.
- Large Dutch oven or heavy bottomed soup pot
- Sharp chef’s knife
- Sturdy cutting board
- Wooden spoon
- Measuring cups and spoons
- Ladle
- Immersion blender, optional, for a partially blended texture
Read Also: Roasted Carrot Ginger Soup
Recommended Products for This Recipe
These are a few products I personally use and recommend, based on years of making soups just like this one in my own kitchen.
None of these are required, but they do make the process smoother.
1. Le Creuset Enameled Cast Iron Dutch Oven
I reach for my Dutch oven for nearly every soup I make because it heats evenly and holds temperature so well once the soup comes to a simmer.
The enameled interior also makes cleanup simple, even after browning the aromatics.
It’s a splurge, but it will genuinely last for decades.
2. Microplane Grater
A good microplane makes grating fresh ginger and zesting lemon so much faster than a box grater.
It gives you fine, fluffy shreds that melt right into the broth instead of stringy chunks. I use mine at least three times a week.
3. Immersion Blender
If you like your soup a little creamier, an immersion blender lets you puree a portion of it right in the pot without transferring hot liquid to a countertop blender.
I usually blend about a third of this soup for body while leaving the rest chunky.
It’s one of those tools that earns its space in a small kitchen.
4. Bulk French Green Lentils
French green lentils hold their shape beautifully in soups and never turn mushy, which is exactly what you want here.
Buying them in bulk also works out to be far more affordable than the small packages at the grocery store.
I always keep a bag stocked in my pantry.
This same combination of pantry staples and a good pot is exactly what makes my White Bean and Kale Soup come together so easily too.
Step-by-Step Instructions: How to Make Butternut Squash Lentil Soup
1. Prep the Vegetables
- Peel the butternut squash with a sturdy vegetable peeler, then cut it in half and scoop out the seeds with a spoon.
- Cut the squash into roughly half inch cubes so it cooks evenly and set it aside.
- Dice the onion, carrots, and celery into small, even pieces so they soften at the same rate.
- Mince the garlic and grate the fresh ginger, keeping them together since they go into the pot at the same time.
- Rinse the dried lentils in a fine mesh strainer under cool water until the water runs clear, then pick out any small stones or debris.
2. Sauté the Aromatics
- Set your Dutch oven over medium heat and add the olive oil, letting it warm for about 30 seconds.
- Add the diced onion, carrots, and celery, along with a pinch of salt to help them release their moisture.
- Cook, stirring occasionally, for 5 to 6 minutes, until the onion turns soft and translucent.
- Add the minced garlic and grated ginger, then cook for another 60 seconds, stirring constantly so the garlic doesn’t burn.
3. Bloom the Spices
- Sprinkle the ground cumin, ground coriander, smoked paprika, and red pepper flakes directly over the sautéed vegetables.
- Stir constantly for about 30 to 45 seconds, letting the spices toast slightly in the residual oil.
- This step wakes up the flavor of the spices, so don’t skip it even if you’re in a hurry.
4. Add the Squash, Lentils, and Broth
- Add the cubed butternut squash and rinsed lentils to the pot, stirring so everything gets coated in the spiced oil.
- Pour in the diced tomatoes with their juices, followed by the vegetable broth.
- Drop in the bay leaf and stir everything together well.
- Raise the heat to medium high and bring the mixture to a gentle boil.
5. Simmer Until Tender
- Once the soup reaches a boil, reduce the heat to low so it maintains a gentle simmer.
- Cover the pot partially, leaving the lid slightly ajar so steam can escape.
- Simmer for 25 to 30 minutes, stirring occasionally, until the lentils are tender and the squash cubes can be easily pierced with a fork.
- If the soup looks too thick at any point, stir in a splash of extra broth or water to loosen it.
6. Stir in the Spinach and Lemon
- Remove the bay leaf from the pot and discard it.
- Stir in the fresh baby spinach a handful at a time, letting each addition wilt down before adding more.
- Once all the spinach has wilted, about 2 minutes, stir in the fresh lemon juice.
- If you’re using an immersion blender for a creamier texture, pulse it briefly in the pot now, blending only about a third of the soup.
7. Season and Serve
- Taste the soup and season with salt and black pepper as needed, keeping in mind that broth saltiness varies by brand.
- Ladle the hot soup into bowls and top with freshly chopped parsley.
- Serve immediately while hot, alongside your favorite crusty bread.
This same low and slow simmering method is what makes my Crockpot Lentil Sweet Potato Stew Recipe so hands off and easy on busy weeknights.
Tips for The Best Butternut Squash Lentil Soup
A few small details make a real difference in how this soup turns out.
None of them add much extra time, but they do add a lot of flavor.
- Cut the squash into uniform cubes so every piece cooks at the same rate.
- Toast the spices in the oil before adding liquid, since this deepens their flavor considerably.
- Use green or brown lentils rather than red lentils if you want distinct, tender pieces instead of a fully broken down soup.
- Add the lemon juice at the very end, after cooking, so its brightness doesn’t dull over heat.
- Taste and adjust the seasoning right before serving, since flavors mellow as the soup simmers.
- Leave the lid slightly ajar while simmering so the soup thickens instead of turning watery.
I picked up the toasting trick while working on my Roasted Butternut Squash Soup Recipe, and it’s made a difference in nearly every soup I make since.
Serving Suggestions
This soup is filling enough to stand on its own, but a few simple sides turn it into a full spread.
I usually keep things simple with something warm and crusty on the side.
- A thick slice of crusty sourdough or a warm skillet cornbread for dipping
- A simple green salad with a light vinaigrette to balance the richness
- A dollop of plain yogurt or a drizzle of good olive oil on top
- A sprinkle of toasted pumpkin seeds for crunch
- Grated parmesan for anyone who isn’t keeping it strictly vegan
Another favorite: Buttermilk Cornbread
Variations of Butternut Squash Lentil Soup
Once you’ve made this soup a time or two, it’s easy to riff on it based on what’s in your fridge.
Here are a few directions I’ve taken it over the years.
- Stir in a can of coconut milk at the end for a creamier, slightly sweet finish.
- Swap the butternut squash for sweet potato or pumpkin if that’s what you have on hand.
- Add cooked shredded chicken for extra protein if you aren’t keeping it vegan.
- Use curry powder in place of the cumin and coriander for a different flavor profile.
- Stir in a handful of chopped kale instead of spinach for a heartier green.
- Top with crispy roasted chickpeas instead of parsley for added crunch.
If you love the idea of mixing squash varieties, you’ll probably also enjoy my Butternut Squash and Sweet Potato Soup Recipe.
Storage and Reheating
This soup holds up well in the fridge and actually tastes even better the next day, once the spices have had time to settle into the broth.
It also freezes well for longer storage.
- Store cooled soup in an airtight container in the refrigerator for up to 5 days.
- Freeze in individual portions for up to 3 months for easy grab and go lunches.
- Thaw frozen soup overnight in the refrigerator before reheating.
- Reheat on the stovetop over medium low heat, stirring occasionally, until warmed through.
- Add a splash of broth or water when reheating, since the lentils continue to absorb liquid as they sit.
My Apple Butternut Squash Soup follows the same storage timeline if you want to keep a rotation of freezer friendly soups on hand.
Nutritional Facts
These values are estimated for one serving, based on a recipe that makes six servings total.
Actual numbers will vary slightly depending on the specific brands and quantities you use.
- Calories: approximately 240 per serving
- Protein: approximately 12 grams
- Carbohydrates: approximately 38 grams
- Fiber: approximately 10 grams
- Fat: approximately 5 grams
- Sodium: approximately 620 milligrams, depending on the broth used
If you’re tracking your fiber intake, this soup pairs nicely with my Lentil Soup Recipe, which follows a similarly hearty, plant forward approach.
Health Benefits of Key Ingredients
Beyond tasting good, this soup is genuinely nourishing thanks to the combination of vegetables, legumes, and warming spices.
Each main ingredient brings something useful to the table.
- Butternut squash is rich in vitamin A and vitamin C, both of which support immune health.
- Lentils are a great source of plant based protein and fiber, which help keep you full longer.
- Carrots and celery add extra fiber along with a mild dose of vitamin K.
- Garlic and ginger both have natural anti inflammatory properties.
- Spinach adds iron and folate without adding many calories.
- Lemon juice provides a boost of vitamin C, which also helps your body absorb the iron from the lentils and spinach.
These same nutrient dense ingredients show up throughout my Sweet Potato Soup Recipe as well, which makes it another good option for meal prep.
FAQs About Butternut Squash Lentil Soup
1. Can I use frozen butternut squash instead of fresh?
Yes, frozen pre cubed butternut squash works well in this recipe and saves you the trouble of peeling and cutting a whole squash.
Just add it straight from frozen, though it may need an extra few minutes to become fully tender.
2. Do I need to soak the lentils before cooking?
No, green and brown lentils do not require soaking before use. A quick rinse to remove any dust or debris is all that’s needed.
3. Can I make this soup in a slow cooker?
Absolutely, you can sauté the aromatics on the stovetop first, then transfer everything to a slow cooker.
Cook on low for 6 to 7 hours or on high for 3 to 4 hours, adding the spinach and lemon juice during the last few minutes.
4. Why did my lentils turn out mushy?
This usually happens when red lentils are used instead of green or brown, since red lentils break down much faster during cooking.
It can also happen if the soup simmers longer than the recipe calls for, so keep an eye on the timing.
5. Is this soup naturally vegan?
Yes, as written, this recipe is completely vegan and dairy free, since the broth, vegetables, and lentils provide plenty of flavor and body on their own.
If you want to add a dairy topping like parmesan or yogurt, that’s entirely optional.
If you’re building out a lineup of cold weather meals, this pairs nicely with my Autumn Minestrone Soup Recipe for a rotation that never gets old.
Butternut Squash Lentil Soup
Ingredients
- 2 tablespoons olive oil
- 1 large yellow onion about 1 1/2 cups or 200g, diced
- 2 medium carrots about 1 cup or 120g, peeled and diced
- 2 stalks celery about 1 cup or 100g, diced
- 4 cloves garlic minced
- 1 tablespoon fresh ginger grated
- 1 teaspoon ground cumin
- 1 teaspoon ground coriander
- 1 teaspoon smoked paprika
- 1/4 teaspoon red pepper flakes optional
- 4 cups butternut squash about 1 medium squash or 600g, peeled and cubed
- 1 cup dried French green lentils rinsed; brown lentils work too
- 1 can diced tomatoes 14.5 ounces or 411g, with juices
- 6 cups vegetable broth about 1.4 L
- 1 leaf bay leaf
- 3 cups fresh baby spinach about 90g
- 2 tablespoons fresh lemon juice about 1 lemon
- salt and black pepper to taste
- fresh parsley chopped, for garnish
- plain yogurt or olive oil for drizzling
- toasted pumpkin seeds for crunch
- grated parmesan for non-vegan option
- crusty sourdough or cornbread for serving
Equipment
- Large Dutch oven or heavy-bottomed soup pot
- Sharp chef’s knife
- Sturdy cutting board
- Wooden spoon
- Measuring cups and spoons
- Ladle
- Immersion blender optional, for partially blended texture
- Vegetable peeler
- Fine-mesh strainer
Method
- Peel and cube the butternut squash into half-inch pieces. Dice onion, carrots, and celery. Mince garlic, grate ginger, and rinse lentils in a fine mesh strainer.
- Heat olive oil in a Dutch oven over medium heat. Add onion, carrots, celery, and a pinch of salt. Cook for 5-6 minutes until softened. Add garlic and ginger, cook for 1 minute more while stirring.
- Add cumin, coriander, smoked paprika, and red pepper flakes. Stir constantly for 30-45 seconds until fragrant.
- Add cubed squash and rinsed lentils, stirring to coat in spices. Pour in diced tomatoes with juices, vegetable broth, and bay leaf. Bring to a gentle boil over medium-high heat.
- Reduce heat to low, partially cover, and simmer for 25-30 minutes until lentils are tender and squash is easily pierced with a fork. Add extra broth if needed.
- Remove and discard bay leaf. Stir in spinach a handful at a time until wilted. Add lemon juice. For creamier texture, use an immersion blender to puree about one-third of the soup.
- Taste and season with salt and pepper. Ladle into bowls, garnish with fresh parsley, and serve hot with crusty bread.
Nutrition
Notes
- Cut the squash into uniform cubes so every piece cooks at the same rate.
- Toast the spices in the oil before adding liquid to deepen their flavor.
- Use green or brown lentils rather than red lentils for distinct, tender pieces that hold their shape.
- Add the lemon juice at the very end after cooking so its brightness doesn’t dull over heat.
- Leave the lid slightly ajar while simmering so the soup thickens instead of turning watery.
- Store cooled soup in the refrigerator for up to 5 days in an airtight container.
- Freeze individual portions for up to 3 months for easy grab-and-go lunches.
- Add a splash of broth or water when reheating, since lentils continue to absorb liquid as they sit.
- For a creamier finish, stir in a can of coconut milk at the end.
- Swap butternut squash for sweet potato or pumpkin, or use kale instead of spinach.
Private Notes
Tried this recipe?
Let us know how it was!Conclusion
This Butternut Squash Lentil Soup Recipe has earned a permanent place in my fall and winter rotation, and I think it will earn one in yours too.
It’s warm, filling, and comes together with very little fuss.
If you give it a try, I’d love to hear how it turned out. Leave a comment below or share a photo, and let me know what variation you tried.
Recommended:
- Kabocha Squash Soup Recipe
- Acorn Squash Soup Recipe
- Roasted Red Pepper Soup Recipe
- Fall Soup Recipes
- Skillet Cornbread Recipe
