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Home / Recipes

Butternut Squash Pasta Sauce

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By: Madeline Tague

Updated: February 12, 2025

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Make a creamy vegan Butternut Squash Pasta Sauce with just a few simple ingredients. This simple recipe makes for the perfect fall comfort food.

Above view of butternut squash pasta in a serving bowl

One-pot

Easy cleanup

You’ll Learn: The surprising power of roasted veggies for creamy, dairy-free sauces

Worth It: It builds a freezer stash for stress-free meals later

Bonus: One bag of frozen squash goes a long way

Above view of butternut squash pasta in a serving bowl

A healthy fall Butternut Squash pasta

Butternut squash is one of my favorite fall ingredients because it is so versatile. It is great roasted on its own, but I like it best blended into sauces and soups.

I decided to roast the squash with tomatoes, onions and simple seasonings to give the sauce a deeper flavor. Once roasted, the veggies are blended with pasta water to make a creamy smooth sauce.

For another roasted veggie sauce, you can try this roasted veggie pasta sauce next.

What kitchen tools will I need to make this Butternut Squash Pasta Sauce?

  • Sheet pan
  • Parchment
  • Measuring cups
  • Measuring spoons
  • Liquid measuring cup
  • Large pot
  • Blender
  • Mixing spoon

What ingredients will I need to make this creamy vegan pasta sauce?

You will be amazed at how easy it is to make this healthy butternut squash pasta with just a few simple ingredients.

  • Frozen cubed butternut squash
  • Fresh chopped tomato
  • Yellow onion
  • Olive oil
  • Salt
  • Pepper
  • Dried thyme
  • Pasta
  • Pasta water reserved from cooked pasta
Above view of ingredients for butternut squash pasta sauce

Why use frozen butternut squash instead of fresh?

The only reason I use the frozen butternut squash is because it makes things way easier and saves time! I hate to peel, deseed, and chop fresh butternut squash.

I find it difficult and time consuming. Plus, frozen butternut squash is normally very affordable. It is most commonly available in the freezer section during the fall so I usually stock up on a few bags that I can use throughout the year.

If you prefer to use fresh butternut squash, that will work just fine! Follow the same steps as you would with the frozen squash.

Let’s make some Butternut Squash Pasta Sauce!

Step 1: Roast veggies in the oven

To begin, preheat oven to 450F and line a baking sheet with parchment paper. Then, place frozen cubed butternut squash, chopped tomatoes and sliced onion on the baking sheet.

Next, drizzle olive oil on top and season with salt, pepper, and thyme. Then, mix to cover the vegetables evenly with oil and seasonings.

Bake at 450F for 20 minutes.

Step 2: Cook pasta and reserve pasta water

Then, while the veggies bake, cook the pasta according to package instructions. Before you drain the cooked pasta reserve 1/3 cup of the pasta water and place in a blender.

Step 3: Blend sauce and mix with pasta

Next, take the cooked veggies hot from the oven and blend with the pasta water until a smooth sauce remains.

Finally, pour the sauce over the cooked pasta and toss to coat. Serve immediately with parmesan cheese or plant based parm alternative. 

Step 4: Enjoy!

How long will this plant based butternut squash pasta keep in the fridge?

I recommend storing the cooked pasta and sauce separately for meal prep. You can keep the cooked sauce in the fridge for up to 7 days. If you are eating some of the pasta immediately, you can toss some of the pasta in the sauce while its hot and store the rest separately.

Check out these other veggie pasta recipes!

  • Mushroom Alfredo Pasta
  • Asparagus Lemon Garlic Pasta
  • Baked Feta and Broccoli Pasta
  • Spicy Pumpkin One Pot Pasta

If you liked this recipe, try this Creamy Shredded Chicken Pasta Sauce next!

You can find the full recipe below. If you make this recipe, please rate and review it in the comments, or share it with me on Instagram!

You can find the full recipe below. If you make this recipe, please rate and review it in the comments, or share it with me on Instagram!

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Recipe

Butternut Squash Pasta Sauce

4.93 from 51 votes
A creamy vegan butternut squash pasta sauce made with simple healthy ingredients.
Recipe By: Madeline Tague
Prep: 10 minutes minutes
Cook: 30 minutes minutes
Print Review Pin It SaveSaved!
Servings: 6 servings

Ingredients

  • 16 oz bag of frozen diced butternut squash
  • 1.5 cups fresh chopped tomatoes
  • 1/2 yellow onion
  • 2 tbsp olive oil
  • 1 tsp salt
  • 1/4 tsp black pepper
  • 1/2 tsp dried thyme
  • 1 lb pasta
  • 1/3 cup pasta water reserved from cooked pasta
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Instructions

  • Preheat oven to 450F and line a baking sheet with parchment paper
  • Place frozen cubed butternut squash, chopped tomatoes and sliced onion on the baking sheet
  • Drizzle olive oil on top and season with salt, pepper, and thyme 
  • Mix to cover the vegetables evenly with oil and seasonings
  • Bake at 450F for 20 minutes
  • While the veggies bake, cook the pasta according to package instructions
  • Before you drain the cooked pasta reserve 1/3 cup of the pasta water and place in a blender
  • Take the cooked veggies hot from the oven and blend with the pasta water until a smooth sauce remains
  • Pour the sauce over the cooked pasta and toss to coat
  • Serve immediately with parmesan cheese or plant based parm 

Nutrition Information

Serving: 6g, Calories: 367kcal (18%), Carbohydrates: 68g (23%), Protein: 11g (22%), Fat: 6g (9%), Saturated Fat: 1g (6%), Polyunsaturated Fat: 1g, Monounsaturated Fat: 4g, Sodium: 398mg (17%), Potassium: 538mg (15%), Fiber: 5g (21%), Sugar: 5g (6%), Vitamin A: 8350IU (167%), Vitamin C: 22mg (27%), Calcium: 61mg (6%), Iron: 2mg (11%)

This website provides approximate nutrition information for convenience and as a courtesy only. Nutrition data is gathered primarily from the USDA Food Composition Database, whenever available, or otherwise other online calculators.

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Madeline Tague

Hi, I’m Madeline! I am so excited to share my healthy and approachable recipes with you. Here you will find simple, comforting recipes that the whole family will enjoy. Turn on your favorite playlist or podcast and let’s get cooking!
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4.93 from 51 votes

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Recipe Rating




149 responses

  1. Nichole
    September 22, 2021

    5 stars
    So Yummy!! I made this for my sister and I for dinner and she can’t have cheese so she thought it was a great replacement for cozy mac and cheese vibes. We couldn’t stop eating it!

    Reply
  2. Erica Friedman
    June 29, 2021

    Hi! This recipe was such a hit for my 10 month old. Just wondering if we can make the sauce ahead and freeze it? Thanks!

    Reply
    1. Madeline
      July 1, 2021

      yay!! Yes! I think it should be totally fine frozen. you might need to remix it once thawed, but it should be okay!

      Reply
  3. Ely
    June 21, 2021

    5 stars
    It was amazing! Tasted delicious and even the kids loved it!

    Reply
    1. Madeline
      June 23, 2021

      wonderfuL! thank you so much!

      Reply
  4. Avery
    May 4, 2021

    5 stars
    Such a delicious and easy sauce! Very hearty and warming fall/winter flavours without being overpowered with ~pumpkin spice everything~. Would have never thought to blend roasted veg into a sauce!

    Reply
    1. Madeline
      May 4, 2021

      wonderful! thank you!

      Reply
  5. Rachel
    February 13, 2021

    It’s a cold day here in Winnipeg, MB (-35C!!!) and was looking for a comfort food – I’m so glad I stumbled upon this recipe! Nothing better than the smell of roasting veggies on a today like today . I made slight modifications (added fresh rosemary + used vegetable broth vs. pasta water as I’m making this ahead of time for dinner later this week) – and it turned out delish – highly recommend!

    Reply
    1. Madeline
      February 16, 2021

      WOW! COLD thank you!!

      Reply
      1. Amanda
        August 16, 2022

        5 stars
        Great recipe! Super quick to put together and yummy!

        Reply
        1. Madeline
          August 24, 2022

          thanks Amanda!

          Reply
  6. Tiffany
    January 24, 2021

    I am looking to try this recipe soon, but I want to add cheese to it. How would you recommend adding cheese to this recipe?

    Reply
    1. Madeline
      January 25, 2021

      I would use either goat cheese for a tang or just some parm. Both can be stirred in at the end when the pasta and sauce are warm!

      Reply
      1. Marla Sue
        September 8, 2022

        5 stars
        So delish! Added some shrimp & some carrot since I was a little short on squash and it turned out great! Adding to my faves.

        Reply
        1. Madeline
          September 9, 2022

          yay! so glad!

          Reply
  7. Christina
    January 4, 2021

    This was so yummy and a hit with my whole family, my sister remade it and loved it too!! Super super easy and comforting <3

    Reply
    1. Madeline
      January 4, 2021

      so wonderful!! Thank you!!

      Reply
  8. SK
    December 29, 2020

    5 stars
    This recipe is wonderful! I love the idea of throwing it all onto a sheet pan and combining at the end! I didn’t have fresh tomatoes so I subbed with tomato paste and it turned out delicious!

    Reply
    1. Madeline
      December 30, 2020

      wonderful!! so good to know it worked with the substitution!

      Reply
  9. Michelle
    December 28, 2020

    5 stars
    So yummy! So easy! Hurry and make this delicious recipe!!!!

    Reply
    1. Madeline
      December 28, 2020

      yay!! thank you!!

      Reply
  10. Jessie
    December 28, 2020

    This has become my hands-down favorite meal prep or weeknight dinner. I use the pre-cut raw butternut squash from Trader Joe’s and usually canned tomatoes, put it over chickpea pasta and it’s AMAZING!

    Reply
    1. Madeline
      December 28, 2020

      wonderful!! thank you!!

      Reply
  11. Bethany
    December 28, 2020

    5 stars
    This was so easy and so delicious! I didn’t want pasta the next day so I thinned it out and it made a wonderful soup!

    Reply
    1. Madeline
      December 28, 2020

      ooo love that idea!!

      Reply
  12. Lilian
    December 8, 2020

    I made this and it’s really good but mine didn’t come out as creamy and orange as yours. Any ideas why? I follow the recipe exactly but use fresh squash instead of frozen. How many cups does your 16oz frozen squash come out to?

    BTW I love your recipes and your instagram – you are amazing!

    Reply
    1. Madeline
      December 8, 2020

      Hi Lilian, It gets its orange color from the blend of butternut squash and tomatoes. Those each naturally have different vibrancies. My veggies may have just been more vibrant than yours! Fresh squash thats not in season would not be as vibrant which is why I recommended frozen. And 16oz is 2 heaping cups.
      Thanks!

      Reply
  13. Jessica
    November 18, 2020

    5 stars
    SO easy and simple yet delicious. I couldn’t help but eat it just by the spoonful!

    Reply
    1. Madeline
      November 19, 2020

      Wonderful!! Thank you!!!

      Reply
  14. Ari
    October 27, 2020

    Oooo I’m going to try this! I bet it’d also make a bomb vegan/non mac’n’cheese.

    Reply
    1. Madeline
      October 27, 2020

      Yes!!

      Reply
      1. Katy Evans
        September 25, 2023

        Hey mine was more like soup rather than sauce. Any advice please. It wasn’t smooth so need to try again. T.i.a

        Reply
        1. Madeline
          September 26, 2023

          Hi Katy! I am not sure on the consistency if you followed the recipe exactly. It definitely should have a thicker consistency. In terms of smoothness, it might have needed to be blended longer.

          Reply
  15. Ashley Kuhn
    October 21, 2020

    5 stars
    Omg! This is amazing! I followed the recipe with the exception of eyeballin’ the spices and it was so delicious. We topped with some grilled chicken breast but I barely touched it – I couldn’t stop eating the pasta!!

    Reply
    1. Madeline
      October 21, 2020

      ah wonderful!!! Thank you!!

      Reply
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Welcome

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