How to Cook Spaghetti Squash

Spaghetti squash is a great low-carb option for the pasta lover. It's easy to cook and you can put any of your favorite pasta sauces on top. There are three ways to cook this unique and delicious squash.

Pick your method!
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Spaghetti Squash is not only a perfect stand in for spaghetti because when you cook it, its flesh separates into strands that can replicate long pasta, but because it is nutrient dense – it has very low calorie, but high nutritional content. That makes it a much better option than pasta on a number of levels. It comes in a variety of shapes, sizes and colors (ivory, yellow and orange), but how to cook spaghetti squash remains the same and there are three great ways to do it. 

Step One: Preparing Spaghetti Squash

The first step is to cut the spaghetti squash in half. That can be a task if the spaghetti squash is very large, but once you’re through the tough exterior, the center of the squash is made up of a cavity with seeds that is easy to cut through. So, grab a large chef’s knife and slice it from stem to flower end. Then, scoop out the seeds of the squash and season the inside with salt, pepper and a little olive oil. Now you’re ready to cook it one of three ways – just pick your method.

Spaghetti squash on a cutting board with a white handled knife, a blue and white striped towel, a spoon.

How to Cook Spaghetti Squash in the Oven

To cook spaghetti squash in the oven, pre-heat the oven to 400ºF and place the seasoned and lightly oiled squash cut side down on a baking sheet. Roast the squash for 30 to 45 minutes, or until a paring knife slides into the flesh through the skin easily. How long it takes will depend on how big and dense your particular squash is.

Spaghetti Squash cut in half and on a baking sheet with olive oil, salt and pepper near by.
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Cooked Spaghetti Squash on a baking sheet.


How to Cook Spaghetti Squash in a Pressure Cooker

If you have a pressure cooker, you can cut down on the cooking time to about ⅓ of the oven cooking time. Place a rack in the bottom of your pressure cooker and add 2 cups of water. Place the spaghetti squash halves into the cooker, on the rack. It’s ok if they are stacked on each other. Lock the lid in place and cook on HIGH pressure for 15 minutes. Then, release the pressure using the quick-release method and carefully remove the squash from the cooker.

Spaghetti squash cut in half and stacked in a pressure cooker.
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How to Cook Spaghetti Squash in the Microwave

Using a microwave to cook your spaghetti squash cuts the time down even more. With a microwave, you don’t have to wait for the cooker to come to pressure or for the cooker to release the pressure. Simply place the spaghetti squash into a microwave safe dish, cut side down. Microwave for 8 to 12 minutes, depending on the size of your squash. Again, the squash is fully cooked when you can pierce through the skin and into the flesh with a paring knife easily. The only disadvantage to using the microwave is that it’s much easier to cook just half a squash at a time because most spaghetti squash are so big that only half will fit in a microwave-sized casserole dish. If you’re only cooking for one or two – this is perfect. 
Half a spaghetti Squash in an orange ceramic dish with a blue and white striped towel.

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Now what? How to Serve Cooked Spaghetti Squash

Once you have your cooked spaghetti squash, you can keep the squash cut side down on the baking sheet, casserole dish or in the pressure cooker to keep it warm for quite a long time.  When you’re ready to serve it, separate the flesh into strands. Hold the squash half with a towel (it’s hot!) and use a fork to pull the flesh away from the skin. It will fall into strands and is ready to serve. 

A fork shredding spaghetti squash on a baking sheet with a blue and white striped towel.

What to Serve with Spaghetti Squash

You can top spaghetti squash with whatever you like. You could keep it simple and just top it with parmesan-parsley bread crumbs or you could top it with marinara sauce or even bolognese sauce. Most traditional pasta sauces can be served on spaghetti squash, so think of that the next time you’d like to eat a low-carb dinner, or someone you’re serving tells you they are gluten-free. It’s a fantastic, tasty and satisfying option.

Spaghetti Squash with breadcrumbs and a fork and a green napkin on a marble countertop.

Quick Notes:

  • For all methods, cut the squash in half and scoop out the seeds. Season with salt and pepper and lightly drizzle with olive oil
  • OVEN METHOD: Roast squash, cut side down, on a baking sheet at 400ºF for 30 – 45 minutes, depending on the size of the squash.
  • PRESSURE COOKER METHOD: Place a rack and 2 cups of water into the pressure cooker. Stack the halved squash into the cooker and cook on high pressure for 15 minutes. Use the quick-release method to release the pressure.
  • MICROWAVE METHOD: Place the squash, cut side down, in a microwave-safe casserole dish and microwave for 8 to 12 minutes, depending on the size of the squash.
  • For all methods, the squash is fully cooked when you can pierce through the skin into the flesh with a paring knife easily.
  • Shred the flesh away from the skin with a fork
  • Serve with just butter, salt and pepper or top with breadcrumbs or your favorite pasta sauce.

How to Cook Spaghetti Squash

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