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Home ยป Recipes ยป Soups, Stews and Chili

Roasted Cauliflower Butternut Squash Soup

Published: Nov 17, 2023 ยท Modified: Jan 11, 2025 by Megan Calipari ยท This post may contain affiliate links ยท 1 Comment

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This Vegan Roasted Cauliflower Butternut Squash Soup is ultra creamy, easy to make, and full of flavor thanks to Thai red curry paste.

I love Winter squash season! There are so many varieties and they are all so versatile. Butternut squash can be turned into Garlic Butter Butternut Squash Steaks or Buttternut Squash Farrotto. Acorn squash can be made into Acorn Squash and White Bean Stew, and sugar pumpkin purรฉe can be make into Vegan Pumpkin Chocolate Chip Cookies. Winter squash can truly do it all.

A white bowl with Vegan Roasted Cauliflower Butternut Squash Soup topped with chives on top.
This soup is velvety smooth and super creamy.

But, today I'm sharing a super easy and delicious soup recipe: Roasted Cauliflower Butternut Squash Soup. This soup is velvety smooth, super creamy and full of flavor. And this recipe uses only 9 ingredients!

Jump to:
  • Ingredients
  • Variations and Substiutions
  • Special Equipment
  • Instructions
  • What to Serve it With
  • Storage
  • Looking for More Soup Recipes?
  • ๐Ÿ“– Recipe
  • ๐Ÿ’ฌ Comments

Ingredients

Butternut Squash: You will need a whole medium butternut squash for this soup.

Cauliflower: Cauliflower is roasted along with the squash and aromatics.

Canned Coconut Milk: A whole can of coconut milk for creaminess and flavor.

Thai Red Curry Paste: Red curry paste is a one-stop shop for flavor. Its full of chilis, lemongrass, and galangal. And, just a few tablespoons make this soup delicious and flavorful. If you prefer a mild spice I recommend Thai Kitchen Red Curry Paste and if you love spice I recommend Maesri.

Overhead shot of ingredients needed to make the Roasted Cauliflower Butternut Squash Soup.
This is all you need to make this recipe.

Variations and Substiutions

Instead of butternut squash, use any winter squash in this soup.

Pumpkin, kabocha, and honeynut would all be particularly great!

Special Equipment

This soup is velvety smooth like my Roasted Garlic Tomato Soup, so you will need a blender. I have a Vitamix, but any blender will work.

Instructions

To make this Roasted Cauliflower Butternut Squash Soup, first, combine the cubed squash, cauliflower florets, onion, and cloves of garlic on a sheet pan.

Then, toss them with olive oil, salt and pepper and transfer the sheet pan to a 425*F oven to roast.

Butternut squash, cauliflower, onion and garlic on a sheet pan.
Add the butternut squash, cauliflower, onion and garlic to a sheet pan. Toss with olive oil, salt and pepper.
Roasted vegetables on a sheet pan.
Roast the vegetables until they are soft and starting to brown.

Next, when the vegetables are soft and starting to brown, remove them from the oven.

Now, scoop all the vegetables into a blender, and add the coconut milk, vegetable stock, red curry paste.

Then, blend on high until the soup is completely smooth.

Vegetables, thai red curry paste, coconut milk and vegetable stock in the pitcher of a blender.
Add the vegetables into the blender along with coconut milk, vegetable stock and red curry paste.
Smooth and creamy vegan Thai red curry soup in the pitcher of a blender.
And blend until smooth.

Finally, pour the soup into a large pot to warm it up and serve!

This vegan soup should be velvety smooth and have BIG flavor from the Thai red curry paste.

What to Serve it With

  • Easy Vegan Focaccia
  • Vegan Garlic Bread
  • Vegan Parker House Dinner Rolls

Storage

To store this Roasted Cauliflower Butternut Squash Soup, pour it into airtight containers and store in the refrigerator for up to 4 days.

Or freeze for up to a month.

A spoon with vegan roasted cauliflower butternut squash soup on it.
The perfect bite!

Looking for More Soup Recipes?

Instant Pot Lentil Stew

Butternut Squash Black Bean Soup

Vegan Barley Vegetable Soup

๐Ÿ“– Recipe

Roasted Cauliflower Butternut Squash Soup in a white bowl topped with chives.

Roasted Cauliflower Butternut Squash Soup

Megan Calipari
This Vegan Roasted Cauliflower Butternut Squash Soup is ultra creamy, easy to make, and full of flavor thanks to Thai red curry paste.
5 from 2 votes
Print Recipe Pin Recipe
Prep Time 20 minutes mins
Cook Time 1 hour hr
Total Time 1 hour hr 20 minutes mins
Course Dinner, Soup
Cuisine Thai
Servings 10 Cups
Calories 164 kcal

Equipment

  • 1 Sheet Pan
  • 1 Blender
  • 1 3-4 Quart Sauce Pan
  • 1 Chefs Knife
  • 1 Cutting Board
  • 1 Rubber Spatula
  • Measuring Cups and Spoons

Ingredients
  

  • 6 Cups Seeded, Peeled and Cubed Butternut Squash 1 Medium Squash (see note)
  • 4 Cups Cauliflower Florets about ยฝ of a head of cauliflower
  • 1 Medium Onion, cut into 8 large pieces
  • 3 Cloves Garlic leave the cloves whole
  • 2 tablespoon Olive Oil
  • ยฝ teaspoon Kosher Salt half this amount if using fine grain salt
  • 2 ยฝ Cups Vegetable Stock see note
  • 1 15 oz Can of Coconut Milk see note
  • 3 tablespoon Red Curry Paste
  • Chives for Garnish optional

Instructions
 

  • Preheat oven to 425* F.
  • Add the butternut squash, cauliflower florets, onion and garlic onto a sheet pan. Drizzle the olive oil on top of the vegetables, along with salt and black pepper to taste. Place the sheet pan into the oven, and roast stirring occasionally for 1 hour.
    6 Cups Seeded, Peeled and Cubed Butternut Squash, 4 Cups Cauliflower Florets, 1 Medium Onion, cut into 8 large pieces, 3 Cloves Garlic, 2 tablespoon Olive Oil, ยฝ teaspoon Kosher Salt
  • Once the vegetables are soft and starting to brown, remove them from the oven and scoop them into the pitcher of a blender. Then, add the vegetable stock, coconut milk and red curry paste. Blend on hight until the soup is completely smooth.
    2 ยฝ Cups Vegetable Stock, 1 15 oz Can of Coconut Milk, 3 tablespoon Red Curry Paste
  • Pour the soup into a saucepan and heat over medium until its hot. Then scoop into bowls and top with chives. Serve.
    Chives for Garnish

Notes

Look for a butternut squash that is about 2 pounds.
Use more vegetable stock to thin the soup out to your liking.ย 
Use full-fat canned coconut milk for the perfect velvety texture.
To store: Scoop into airtight containers and store in the refrigerator for up to 4 days.
Or freeze for up to a month.

Nutrition

Serving: 1CupCalories: 164kcalCarbohydrates: 14gProtein: 2gFat: 12gSaturated Fat: 1gPolyunsaturated Fat: 0.4gMonounsaturated Fat: 2gSodium: 367mgPotassium: 435mgFiber: 3gSugar: 4gVitamin A: 9763IUVitamin C: 38mgCalcium: 60mgIron: 1mg
Tried this recipe?Let us know how it was!

Let me know how you like this recipe!

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Comments

  1. Elaine says

    August 12, 2025 at 3:42 am

    5 stars
    So good! Will go into the rotation. I added juice of half a lime, and oven-crisped cooked lentils for more protein. The appeal of this recipe is that cauliflower + squash= less squashy taste for those who aren't big fans of squash.

    Reply
5 from 2 votes (1 rating without comment)

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Hi, I'm Megan! I'm a trained pastry chef who is passionate about creating vegan desserts and meals for everyone. My recipes use simple ingredients and methods to create delicious results.

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