Here’s a step-by-step guide for how to cook a whole Instant Pot Spaghetti Squash with no poking or cutting. This is the easiest way to cook a squash without worrying about the potential danger of cutting yourself. Serve your cooked spaghetti squash in a variety of delicious ways.

cooked spaghetti squash half on cutting board

Why You Need This Recipe

  • Spaghetti squash are found during the fall and winter months in North America. They are renowned for having long spaghetti-like strands that often serve as a low-carb and fiber-rich alternative to cooked pasta.
  • The only problem with cooking spaghetti squash is that they are really hard to cut open. If you want to bake a spaghetti squash in the oven, you need to cut it open first. I always get really nervous about cutting myself because the squashes tend to be really hard and dense. See my related recipe for Crockpot Spaghetti Squash.
  • This is the easiest way to cook a whole spaghetti squash because you don’t have to cut it, poke it, or even prick it first. You literally just pop it into the Instant Pot electric pressure cooker and let the appliance work its magic. I created very similar recipes for Instant Pot Whole Butternut Squash, Instant Pot Whole Acorn Squash, and Instant Pot Whole Kabocha Squash.

Key Ingredients

Whole spaghetti squash that is no longer than 8 inches is required for this recipe. If you are using a 6-quart Instant Pot (the most common size), then you need to keep this limitation in mind. Since the point of this recipe is to cook the spaghetti squash whole without cutting it first, then you need to make sure it will fit inside the inner pot.

The squash should feel like a good weight for its size and the skin should be smooth and yellow.

You’ll also need one cup of water for this recipe to help the pot come up to pressure.

ingredients for instant pot spaghetti squash

Recipe Steps

Step One

Place a whole, uncut spaghetti squash into the steamer basket of the Instant Pot with one cup of water. You don’t need to worry about poking or pricking the squash at all. Some people worry about the squash exploding, but that will not happen in a pressure cooker.

collage with photos on how to make instant pot spaghetti squash

Step Two

Lock on the lid and set the time to 18 minutes at high pressure.

When the cooking time is up, let the pressure come down naturally for 15 minutes. Then, use the quick release to get rid of any remaining pressure.

whole cooked spaghetti squash

Step Three

Remove the lid and use tongs to carefully transfer the cooked spaghetti squash to a bowl or cutting board.

Use a sharp knife to cut the squash in half lengthwise and scoop out the seeds. The seeds should be discarded.

Step Four

Then, use a fork to gently pull the cooked flesh into a serving bowl. The cooked spaghetti squash flesh will naturally come apart in strands that look almost exactly liked cooked spaghetti pasta.

picture of spaghetti squash noodles in bowl

Step Five

Serve your cooked spaghetti squash with any topping you would put on cooked pasta, including marinara sauce, Alfredo sauce, or even just butter (or vegan butter), salt, and pepper.

Recipe Tips & Substitutions

  • Pick a small to medium-sized spaghetti squash to make sure it will fit inside your pressure cooker pot. Ideally your squash will be less than 8-inches in length to fit inside a 6-quart Instant Pot.
  • Serve immediately or store the cooked squash in an airtight container in the refrigerator for up to 4 days.
  • For smaller squashes, cut the cook time down to just 12-15 minutes. A medium whole spaghetti squash weighing around two pounds requires about 18 minutes.

FAQs

Do I need to poke holes in the squash to keep it from exploding?

No, you do not need to poke holes in the squash.

Can you cook other squashes using this method?

Yes, absolutely! But, different squashes have different cooking times. See my recipes for

  • Instant Pot Whole Butternut Squash, Instant Pot Kabocha Squash and Instant Pot Acorn Squash.
  • Which Instant Pot should I buy?

    I recommend the 6-quart Duo (here’s my beginner’s guide to the Instant Pot Duo).

    cooked instant pot spaghetti squash for serving

    Other Easy Instant Pot Recipes You May Like

    Or, check out my entire index of gluten-free Instant Pot recipes.

    I hope you make this recipe! If you do, please leave a comment and a starred review below.

    And, consider following me on social media so we can stay connected. I’m on Facebook, Pinterest, Instagram, and YouTube!

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    instant pot whole spaghetti squash on trivet

    Instant Pot Whole Spaghetti Squash


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    Description

    Here’s a step-by-step guide for how to cook a whole Instant Pot Spaghetti Squash with no poking or cutting. This is the easiest way to cook a squash without worrying about the potential danger of cutting yourself. Serve your cooked spaghetti squash in a variety of delicious ways.


    Ingredients

    Units Scale
    • 1 cup water
    • 1 whole spaghetti squash (less than 8 inches in length)

    Instructions

    1. Place the trivet inside the base of a 6-quart or 8-quart pressure cooker. Pour in the water and then place the butternut squash on top of the trivet.
    2. Lock on the lid and make sure the valve is set to “sealing.” Set the time to 18 minutes on high pressure.
    3. Once the cooking time is complete, let the pressure come down naturally for 15 minutes. Then, remove the lid and use tongs to carefully remove the squash from the pot to a cutting board.
    4. When the squash is cool enough to handle, use a sharp knife to cut off the top and end of the squash. Then, cut the squash in half from the top to the bottom.
    5. Open the squash and use a spoon to scoop out and discard the seeds. Then, use a fork to shred the cooked flesh of the spaghetti squash. It should come apart like spaghetti noodles.
    6. Transfer the cooked spaghetti squash “noodles” to a serving bowl. Add sauce of choice and serve hot.
    7. Serve immediately or store the cooked squash in an bowl with an air-tight lid in the refrigerator for up to 4 days.

    Notes

    1. Cooked spaghetti squash can be served in a variety of ways, including with marinara sauce or your favorite ways to serve regular spaghetti.
    2. For spaghetti squashes that are on the smaller size (less than 6 inches), reduce the cook time to 15 minutes.
    3. The total cook time includes 10 minutes for the pot to come up to pressure, plus the natural release time.
    • Prep Time: 5 minutes
    • Cook Time: 18 minutes
    • Category: Side dish
    • Method: Instant Pot
    • Cuisine: Healthy

    Keywords: spaghetti squash cooked whole, instant pot whole squash, instant pot winter squash

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