Dinner

November 1, 2018

Creamy Vegan Butternut Squash Pasta Sauce

Looking for something creamy, comforting and cozy? What fits the bill better than pasta. Specifically, this creamy, fall inspired vegan butternut squash pasta sauce. This has long been a favourite recipe of mine and also for so many of you too. The sauce is made from creamy butternut squash, soaked cashews for extra creaminess, some savory smoky spices, plus a whole head of roasted garlic. It coats that beautiful rigatoni which is then topped with crispy sage and toasted pumpkin seeds.

vegan butternut squash pasta on a plate.

This post was originally shared in 2018 but has since been updated (2023) with newer photos and clearer directions. The recipe has not changed.

Ingredients

Here's everything you'll need to make this creamy vegan butternut squash sauce.

How to Make This Vegan Butternut Squash Pasta Sauce

The first thing you'll want to do is soak your cashews. Soak your cashews in hot water for at least two hours, or in a pinch, you can soak them in just boiled water for about 30 minutes. 

cashews soaking in water

Cook your Squash

Cut the butternut squash in half, removing the seeds and place cut-side down on a baking sheet. Bake for 30-35 minutes until cooked through. Add in some garlic too!

honeynut squash cooked

Fry the Sage Leaves

Wash and dry your sage leaves and heat up a small pan over medium heat. Add a drizzle of extra virgin olive oil and fry the sage until crispy, about four to five minutes. Then remove and set aside. Toast the pumpkin seeds and add those alongside the sage leaves.

sage leaves in skillet with oil.

Prepare the Vegan Butternut Squash Sauce

Remove the butternut squash and let cool while you boil some water in a pot for your pasta and cook according to package directions. Once cooked, drain and add back into the pot. Reserve some pasta water for blending the sauce.

Add your greens to the pasta so that it has time to wilt a little with the heat of the pasta. 

Once the squash has cooled slightly, scoop out 2 cups and add to a blender along with the remaining pasta ingredients. Blend until smooth and creamy. It's important to use about 2 cups, if you add more, increase the other ingredients as well. You'll have some leftover cooked squash, which you can add to your pasta, or save it for another use.

vegan butternut squash pasta sauce

Essential Ingredients

This vegan butternut squash pasta sauce is amazing! A lot of times, I find that squash pasta sauces tend to be a little more on the sweet side and I wanted this to be super savoury.

So, I add in a few key ingredients such as:

  • Smoked paprika
  • Ancho Chili powder
  • Fried sage 
  • Cashews
  • Roasted garlic

Usually I would say that you can get away without some ingredients if you don't have them, but with this one, I would say don't miss out on the sage.

When you fry it in a little bit of oil it gets all crispy and tastes so amazing in this dish. It really helps balance out the sweetness of this vegan butternut squash pasta sauce in my opinion.

vegan butternut squash pasta on a plate.

Serving & Storage

  • Store leftover cooked pasta with sauce in a sealed container in the fridge for up to three days. Reheat in a nonstick skillet over low heat, or microwave until warmed through.
  • Freeze leftover sauce in a sealed container (or freezer safe plastic bag) in the freezer for up to three months. Defrost overnight in the fridge and then reheat on low in a small pot and toss with cooked pasta when ready to eat.

Tips

  • Don't forget the pasta water: pasta water is essential for this creamy vegan butternut squash pasta as it helps the sauce stick to the pasta. Plus it's necessary to thin out the vegan squash sauce. You can always add an extra splash of water to the pasta when stirring everything together if needed.
  • Season the pasta water: be sure to add a good pinch of salt to the cooking water for the pasta. This helps to season the pasta as well.
  • Use only the amount of squash recommended: you may have more squash leftover, but only use two cups of the cooked butternut squash for the recipe. Save the rest for another recipe like this butternut squash grilled cheese.
vegan butternut squash pasta on a plate.

Ingredients & Products I Recommend:

Kosher salt:

I exclusively use Diamond Crystal kosher salt for all of my recipes. I prefer the texture, taste and consistency of this brand and highly recommend it for everyday cooking.

Substitutions For Making This Butternut Squash Pasta Sauce

  • No Nuts: omit the cashews, it will be less creamy, but still delicious.
  • No Greens: omit. Any type of leafy green would be nice in here if you have.
  • Make it Gluten Free: use your favourite gluten free pasta.
  • More Protein: add in some cooked protein such as chicken to the dish. Or, sprinkle some hemp seeds on top for a little boost. You can also use a higher protein/fiber pasta such as quinoa, chickpea or lentil.

More Pasta Recipes to Try:

I really, really love noodles and pasta, so be sure to check out these other fun recipes!

Are you ready to make this? Let's get to it!

As always, if you make this vegan butternut squash pasta sauce please share with me, by tagging me on Instagram or leave a comment and/or review below. I truly love seeing and hearing form you!

This post contains affiliate links, which means I may receive a small commission at no extra cost to you. I only share products and services I have personally used and love. Disclosure here.

Creamy Vegan Butternut Squash Pasta Sauce

You're going to love this creamy vegan butternut squash pasta sauce that coats every inch of your favourite pasta.

Prep:
10
min
cook:
35
min
total:
45
min
servings:
4
Author:

Jaclyn

Ingredients


Instructions


  1. Soak your cashews in hot water for at least two hours, or if you're in a pinch, you can soak them in just boiled water for about 30 minutes.
  2. Preheat your oven to 425℉. Line a baking sheet with parchment paper.
  3. Cut the butternut squash in half from top to bottom and remove the seeds. Place the squash cut-side up on the baking sheet. Bake for 30-35 minutes until cooked through. Place the garlic in foil and drizzle with olive oil and place alongside the squash if using.
  4. Heat up a large skillet over medium-low heat. Add a drizzle of extra virgin olive oil and fry the sage until crispy, about three to five minutes, set aside.  In the same skillet toast the pumpkin seeds until starting to pop and fragrant, about five minutes and then remove and set aside with the sage.
  5. Cook the pasta in a large pot of salted water according to package directions, reserve pasta water for the sauce. Drain and set aside.
  6. Once the squash has cooled slightly, scoop out 2 cups and add to a blender along with the drained cashews, reserved pasta water, roasted garlic cloves, lemon juice, nutritional yeast, smoked paprika, chili powder, salt and extra virgin olive oil. Blend until smooth and creamy.
  7. Toss the spinach (or arugula) in the same large pot used to cook your pasta and then add the warm pasta on top. The heat from the pasta will wilt the greens a bit.
  8. Add the sauce to the pasta and greens and stir well to combine. You can turn the heat on low to get everything hot and wilt the greens more if needed.
  9. Divide onto plates and top with the toasted pumpkin seeds and crispy sage. Season with salt and pepper and enjoy!

Notes

This sauce makes just over 2 cups.

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Jaclyn
September 25, 2023
Hi Kimberly, I'm not sure what you mean by the taste is off as I'm not there to try it myself. You can always try adding more salt, lemon juice or nutritional yeast to taste. If it needs to be creamier, you can try adding a splash of milk (oat, soy or regular) as well. I hope that helps :)
Kimberly
September 24, 2023
I made the roasted butternut squash sauce with nutritional yeast and sunflower seeds as your son has a cashew allergy; the taste is off... I'm not sure what to do to correct it. Any ideas?
Jaclyn
November 14, 2022
Thanks Alexandra! My husband loves it too and he loves his cheese lol.
Alexandra bull
November 10, 2022
Made this recipe for my boyfriend and I on Halloween! It is the perfect fall dish. It is easy to make vegan, nut & gluten free if you use gluten free pasta and do the sunflower seed substitute. My non-vegan boyfriend loved it so much they have asked me to make it again! It is so creamy & has the perfect crunch with the sage and pumpkin seeds.