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How to Cook Whole Spaghetti Squash in the Instant Pot

Instant Pot Spaghetti Squash

Cooking a whole spaghetti squash in the Instant Pot is the simplest and fastest way to cook a whole spaghetti squash. A few reasons I love Instant Pot spaghetti squash is it’s very easy to work with and it turns out perfect every time. This cooking method removes the need to cut an uncooked squash, if you’ve ever tried you know that’s not an easy task. Plus, it’s done in half the time of baking!

Spaghetti squash can be cooked a variety of ways. Before I had an Instant Pot I would struggle through cutting it in half and bake it in the oven. It can also be boiled, steamed, or even microwaved, but you know me. If it can be cooked in the Instant Pot you know I am going to try it. Cooking Spaghetti squash in the Instant Pot is the only way I cook it these days, and I cook it whole. Once the squash is cooked the meat of the squash easily falls away from the skin and separates easily into strands that resemble noodles, the seeds are easily removed with a fork and it’s ready to serve.

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How long does it take to cook a whole spaghetti squash in the instant pot?

I cook a whole medium-sized spaghetti squash in the Instant Pot for 7 minutes with 10 minutes of natural pressure release, it usually takes about 10 minutes for the Instant Pot to come to pressure and begin the cooking cycle. All together you’re right under 30 minutes, compared to using the oven which takes anywhere from 45-60 minutes. Keep in mind that the size of the squash you are cooking and your elevation can be a factor in the cooking process. 


Is spaghetti squash healthy?

Yes! If you looking for a healthy swap spaghetti squash is the perfect substitute for pasta. Spaghetti squash is high in fiber, loaded with antioxidants, and packed with nutrients that include folic acid, potassium, vitamin A, and beta carotene. With around 42 calories per cup, you can see why it would be a popular alternative to traditional pasta. 



Where do I get spaghetti squash?

Spaghetti squash is is a winter squash and is closely related to acorn and butternut squash. Typically harvested in the late summer and fall, but can usually be found year-round in the grocery store. Spaghetti squash is easily grown in most backyard gardens and takes about 100 days to harvest. This is a great article on how to grow your own spaghetti squash.

How to use cooked spaghetti squash?

Spaghetti squash has a slightly nutty but very mild flavor which allows it to be used in so many different ways.  As I mentioned it’s often used as a pasta substitute, but I also really like serving it as an easy side dish. Once the Instant Pot Spaghetti Squash is cooked, deseeded, and scooped out of the skin try adding some butter, garlic, sea salt, pepper, and top with some parmesan cheese.  To serve as the main course, top prepared squash with your favorite spaghetti sauce and ground beef. 


How to prep the spaghetti squash for cooking.

First, be sure it’s going to fit in your Instant Pot with the trivet in the bottom. I have a 6 quart Instant Pot and can easily fit an X lb squash. To prepare the squash hold it firmly keeping your fingers out of the way, and carefully pierce the squash 5-6 times with a sharp knife. With the trivet in the Instant Pot add one cup of water and place the whole spaghetti squash on top.

How to Cook Whole Spaghetti Squash in the Instant Pot.

With the trivet in the Instant Pot add one cup of water and place the whole spaghetti squash on top. Lock the lid in place and select manual/pressure cook. Set cook time to 7 minutes. This cooking method takes just under 30 minutes from start to finish. The Instant Pot will come to pressure quickly, usually around 10 minutes, and then begin the cook cycle and count down from 7 minutes. Once the Instant Pot beeps and signals that the cooking time is complete let the pressure naturally release for about 10 minutes before carefully manually releasing the remaining pressure and steam.


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How cook whole a spaghetti squash in the instant pot
Yield: 6 cups

How cook whole a spaghetti squash in the instant pot

Prep Time: 2 minutes
Cook Time: 7 minutes
Additional Time: 20 minutes
Total Time: 29 minutes

Cooking a whole spaghetti squash has never been easier.


  • 2-3 lb spaghetti squash
  • 1 cup water


  1. Place one cup of water in the instant pot.
  2. Place the trivet in the instant pot.
  3. Carefully pierce the squash 5-6 times.
  4. Place whole squash on the trivet and lock the lid in place.
  5. Set cook time for 7 minutes on high.
  6. When the cook cycle is complete let pressure naturally release for 10 minutes.
  7. Carefully remove the squash using the trivet handles and let cool on a cutting board.
  8. When the squash has cooled enough to handle cut it in half and scoop out the seeds.
  9. Using a fork separate the meat of the squash from the skin and separate it into strands.
  10. Serve immediately or store for 3-4 days in an airtight container.


For longer "spaghetti" strands cut the squash in half crosswise vs in half lengthwise.

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Nutrition Information:



Serving Size:

1 cup

Amount Per Serving: Calories: 122Total Fat: 1gSaturated Fat: 0gTrans Fat: 0gUnsaturated Fat: 1gCholesterol: 0mgSodium: 83mgCarbohydrates: 29gFiber: 6gSugar: 11gProtein: 3g

Nutrition information is an estimate.

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