Creamy Vegan Kabocha Squash Soup with Fall Herbs

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(Note: this post was originally published on December 8, 2019. It has since been updated with a few tweaks.)

A Healthy Vegan Squash Soup for Fall and Winter

If you're looking for comfort food that's actually healthy, this cozy squash soup with herbs is for you. It's the ultimate warming dinner for a cold fall or winter night. But unlike most comfort food recipes, this one is entirely plant-based, hydrating, and loaded with nourishing squash.

This vegan squash soup is easy too. It requires just a few ingredients and the cooking time is mostly hands-off. Additionally, because you can make a double-batch and freeze leftovers for later, this recipe is a winner for busy weekday meal prep. Once you try this decadently creamy kabocha squash soup, you may never want to go back to boring butternut squash again.

Three bowls of colorful vegan squash soup; one is topped with pecans, one is topped with tomato slices and thyme, and one is topped with a balsamic drizzle

What is Kabocha Squash?

The star of this cozy soup is my own personal favorite winter squash: kabocha. They're a bit harder to find than butternut, but you'll be amazed by the taste and texture.

Kabocha squash are large, have dark green skin, and have the shape of a partially-flattened pumpkin. They come in a wide variety of sizes, so you can easily use two small squash for this recipe if you can't find a large one. Kabocha squash have a mild, sweet flavor and are less assertive than other varieties.

The other divine thing about kabocha squash are their unique texture. Their flesh is very dense and creamy. Because of that, kabocha make the most wonderfully decadent, silky soup. If you've never tried making a kabocha squash soup before, prepared to be wowed.

Two white bowls of deep-orange kabocha squash soup, shown on a white background with fresh thyme and sage

How to Make Kabocha Squash Soup

This vegan squash soup is easy to make. You'll just roast the kabocha in the oven while sauteing an onion in a soup pot. Then you'll add vegetable stock to the pot, scoop the squash out of the skin and add it to the pot, toss in three iconic fall herbs (rosemary, sage, and thyme), and blend it all until creamy. Although it takes a while for the squash to roast, the cooking time for this recipe is almost entirely hands-off.

Kabocha Squash Soup Serving Suggestions

This squash soup with herbs is a luxurious, cozy, wholesome bowl of fall goodness. It's wonderful as a main course (especially with fun toppings, see below) or as a side dish, and it reheats beautifully. It also freezes well, so stash some in your freezer and save it for a busy evening.

Adding your toppings of choice is a fun way to customize this soup and to make it feel meal-worthy. Some topping ideas include roasted pepitas or pecans, homemade croutons or crispy chickpeas, a drizzle of balsamic, your favorite crackers, or a dollop of coconut cream. Just make sure to add any toppings right before serving so that they don't get soggy.

Two bowls of healthy, vegan squash soup shown on a white tabletop with beautiful fresh fall herbs (thyme, rosemary, and sage)

Ingredients and Substitutions

Here's what you'll need for this squash soup with herbs, as well as some thoughts, tips, and possible substitutions. If you make any substitutions, I'd love to hear about it in the comments section below.

  • Kabocha squash. You can also use red kuri squash, they're very similar.
  • Sweet onion
  • Vegetable stock. This soup is so creamy and flavorful, water actually works fine if you don't have broth on-hand. If you want to use broth, I suggest unsalted so that you can control the salt level. You can also use full-fat coconut milk if you want extra creaminess and decadence in this vegan squash soup.
  • Salt and pepper
  • Fresh rosemary
  • Fresh sage
  • Fresh thyme
  • Garnishes/toppings of choice

Close-up of a bowl of kabocha squash soup shown from the side, topped with three tomato slices and fresh thyme leaves

Closing Thoughts

Whether you're a kabocha newbie or a long-time kabocha lover, this cozy squash soup with herbs will be your new best friend for a chilly winter evening. The sweetness of the squash paired with the fragrant fall herbs is a lovely combination. The creamy texture is pure bliss.

If you have a busy week coming up, give this kabocha soup a try. If you make a big batch over the weekend, you can easily reheat leftovers for a few nights and have fast, comforting, nourishing meals ready for hectic weekdays.

Three bowls of colorful vegan squash soup; one is topped with pecans, one is topped with tomato slices and thyme, and one is topped with a balsamic drizzle, shown with a large soup spoon

Share It!

It makes me so happy to hear from you and see your creations! Please leave a comment below and let me know what you think about this recipe. If you post a photo on Instagram, hashtag #TheRogueBrusselSprout and tag me (@TheRogueBrusselSprout) in the post text so that I'm sure to see it.

Suggested Pairings

Apple Thyme Old Fashioned

Maple Sea Salt Hummus with Pomegranate

Vegan Brussels Sprouts Waldorf Salad

Roasted Vegetable Harvest Pasta

Chai-Spiced Pear Crumble Bars

Creamy Vegan Kabocha Squash Soup with Fall Herbs

This rich, cozy, vegan squash soup unites sweet kabocha squash with iconic fall herbs. It's comforting, hearty, and perfect for a chilly winter day.

Author:
Lee

Ingredients

  • Large kabocha squash
  • Oil of choice for roasting
  • Medium-sized sweet onion
  • 2-4 c vegetable stock
  • Generous salt and pepper
  • 2 sprigs of fresh rosemary
  • 1 sprig of fresh sage
  • 4-6 sprigs of fresh thyme
  • Garnishes/toppings of choice

Instructions

  1. Preheat the oven to 425.
  2. Cut the kabocha squash around its equator and scoop out the seeds.
  3. Roast the squash halves cut-side down on an oiled sheet tray for 30-45 minutes until very soft. Keep an eye on them; they can vary greatly in size, which will determine how long they take to roast.
  4. While the squash is roasting, dice the onion. Saute over medium heat in a large soup pot until tender and transparent.
  5. When the onion is done, add ~2 c of vegetable stock and start bringing it to a boil. Add salt and pepper.
  6. When the squash is finished, remove it from the oven and allow it to cool.
  7. Scoop out the inside flesh of the squash and add it to the soup pot. As needed, add additional stock (or water) until the squash is just barely covered.
  8. Dice the rosemary and sage very finely and strip the leaves from the thyme. Add the herbs to the soup pot.
  9. Once everything has come to a boil, reduce to a simmer and cook for 10-15 minutes to allow the flavors to meld.
  10. Turn the heat off and blend the soup (either with an immersion blender or working in batches with a standard blender) until smooth and creamy.
  11. Simmer for another 10-15 minutes after blending.
  12. Garnish individual portions as desired.

Leave a Comment

Please Share Your Thoughts!

Did you make this recipe? Did you make substitutions? How did you serve it? Any helpful tips? Please share your thoughts, since these insights are really useful to both me and to other readers.

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Lee
December 14, 2024
Nancy- Thanks for sharing, that sounds like a really nice addition. Yum, leeks!
Nancy Biasatti
December 14, 2024
I added some leeks and potatoes. Delicious. Thank you.