Cook Spaghetti Squash WHOLE {Slow Cooker or Oven}

Once you know how to cook spaghetti squash WHOLE using a slow cooker or by roasting it in the oven, you’ll never put off making amazing (and healthy) spaghetti squash recipes again. The hard part will be done…and there’s no difficult cutting involved!

Spaghetti squash is nature’s answer to low-carb, gluten-free “noodles.” Of course, they don’t taste like pasta at all. They’re actually kind of bland…until you season and mix them with other ingredients. That’s when the magic happens. 

Recipes like Spaghetti Squash Pizza Crust, Spaghetti Squash Au Gratin, and Spaghetti Squash Soup will make the regular dinner rotation once you have this easy process down!

Traditionally, spaghetti squash is cooked by cutting the gourd in half and roasting it in the oven, as we did for Spaghetti Squash Alfredo. I’m certainly not against this method! It delivers a nice flavor especially if it’s brushed with olive oil and seasoned.

But, I do NOT like risking life and limb to cut the squash in half. Luckily, there are easier ways to cook spaghetti squash! Actually, there are 2 methods that I use all the time and neither one requires you to cut anything until the skin is soft to touch! 

And, in case you’re wondering, similar processes work for crock-pot butternut squash and acorn squash too! You’ll find all of these hacks in our cooking tips and guides.

Slow Cooker Spaghetti Squash – Whole

The crock-pot provides maximum flexibility when cooking spaghetti squash. Depending upon your time-constraints it can be cooked on low or on high. The time-frame is very forgiving too!

Wash the outside of the spaghetti squash. Next, stab the skin all over with a knife to allow steam to escape during the cooking process.

For a medium-sized squash, stab it at least 10-12 times. You don’t need to insert the knife very deep either…using just the tip (about 1/2 and inch) is sufficient.

Place spaghetti squash in the slow cooker and cook on low for 5-6 hours or on high for 3-4 hours.

Squash is done when the outside can be easily pierced with a knife. The exact time will vary depending upon the size and shape of the spaghetti squash. 

Allow it to cool for about 10 minutes and then lift it to a cutting board with oven mitts or a dish towel. 

Cut the gourd in half, remove the seeds and then use a fork to loosen the strands of flesh. 

Tip: When buying spaghetti squash, make sure the gourd will comfortably fit in your slow cooker!

Baked Spaghetti Squash – Whole

Whole spaghetti squash can also be baked in the oven. Preheat the oven to 425 degrees Fahrenheit. Wash and prick the outside skin of the squash with a knife. Place it on a sturdy sheet pan and cook for about 30 minutes, rolling it over halfway through. 

Allow it to cool. The spaghetti squash will continue to cook slightly during this time. Using pot holders, remove it to a cutting board.

Cut the spaghetti squash in half, remove all seeds and then use a fork to remove strands. 

Which direction should you cut spaghetti squash?

For long pasta-like strands, cut the spaghetti squash in half crosswise. The strands grow in this circular direction and will be long. This cut is perfect for dishes where the strands stand-in for spaghetti noodles, such as in spaghetti squash marinara.

For shorter strands, cut the spaghetti squash in half longways, which generally works for any recipe.

Frequently Asked Questions about cooking Whole Spaghetti Squash

Here are some of the most frequently asked questions about this cooking spaghetti squash whole:

Do you wash spaghetti squash?

Yes. Always wash the outside of the gourd first to remove dirt and germs. 

Will the spaghetti squash explode while cooking?

The gourd should not explode if cuts are made to allow steam to escape. Make plenty of cuts all over the gourd.

Should spaghetti squash be crunchy?

It’s a matter of preference. Strands of spaghetti squash that are crisp have not been cooked as long as ones that are not. Both are edible. If you will be cooking the spaghetti squash further in a casserole or other dish then crunchy is perfectly fine.

Return spaghetti squash to the oven or slow cooker, even after it has been cut in half, to cook it longer if necessary.

How do you know if the spaghetti squash is done?

Use a knife to poke the skin and test for doneness. If the knife is easily inserted into the flesh, then the spaghetti squash is ready to come out.

Can you cook whole spaghetti squash in the microwave?

I’ve only cooked it briefly in order to soften the skin so it’s easier to cut. However, the Jaden over at The Steamy Kitchen has. Check out How to Cook Spaghetti Squash in the Microwave.

Do you need to add water to the bottom of the slow cooker?

You can add up to a cup of water to the bottom of a slow cooker, but you don’t have to. We do not take this step.

How to Store Cooked Spaghetti Squash

Spaghetti squash can be cooked days before you want to use it, making dinner preparation easy!

Refrigerator

Store cooked spaghetti squash noodles in an air-tight container or bag in the refrigerator for up to 5 days. 

Freezer

Stored cooked spaghetti squash noodles in a freezer-safe container or bag for up to 3 months in the freezer. When you’re ready to enjoy the spaghetti squash, remove the storage container to the refrigerator to defrost.

Defrosted noodles can be reheated on the stove-top, in a microwave or use them in your favorite recipe.

If spaghetti squash “noodles” are too watery, place them in a strainer and press out the extra liquid. We use this trick a lot…see it action for Spinach and Feta Muffins!

How to use Cooked Spaghetti Squash

So…what are you going to do with all that spaghetti squash? Check out this ever-growing list of ideas:

• Season with salt, pepper
• Stir in pesto and top with chicken, shrimp or your favorite protein.
• Stir in marinara and top with meatballs and parmesan cheese
• Spaghetti Squash Alfredo
• Spaghetti Squash Pizza Crust
• Spaghetti Squash Soup
• Spaghetti Squash Au Gratin Casserole “Cups”

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