Air Fryer Spaghetti Squash (Easy, Low-Carb & Keto)

Air fryer spaghetti squash is the easiest way I know to get tender, pasta-like strands with lightly golden edges and no oven. Slice it, season it, and let the air fryer do the work. Then fork it into noodles and top it with butter and Parmesan, your favorite marinara, or meatballs.

It’s naturally low-carb and gluten-free, so it’s my go-to keto swap for spaghetti all fall and winter. If you love cooking winter squash in the air fryer, my Easy Air Fryer Acorn Squash is another simple side, and don’t toss the seeds: Air Fryer Roasted Acorn Squash Seeds use a method you can follow with spaghetti squash seeds too.

Why You’ll Love Air Fryer Spaghetti Squash

• Endlessly versatile: Serve it as a side, a pasta base, or meal-prep it for the week.
• Low-carb and keto-friendly: A lighter swap for wheat pasta that’s naturally gluten-free.
• Hands-off: About 10 minutes of prep, then the air fryer does the rest.
• No oven needed: Great for small kitchens, hot days, or when the oven is full on a holiday.
• Better texture: The circulating heat gives you tender strands with lightly caramelized edges.

Ingredients for Spaghetti Squash in the Air Fryer

• Spaghetti squash: One small to medium squash (about 2 to 3 pounds) that fits in your basket once halved.
• Olive oil: Coats the flesh so it roasts instead of drying out. Avocado oil works too.
• Salt and black pepper: Simple seasoning that keeps the strands versatile.
• Garlic powder (optional): Adds savory flavor without overpowering your sauce.

To serve: Butter and Parmesan, marinara, Alfredo sauce, pesto, or fresh herbs.

Full amounts are in the recipe card below.

How to Pick and Cut Spaghetti Squash

Picking: Choose a squash with firm, evenly colored yellow skin and no soft spots or cracks. It should feel heavy for its size. Check that it will fit in your air fryer basket once cut in half lengthwise.

Cutting safely: Spaghetti squash has a hard shell, so take your time.

1. Trim a thin slice off one long side so the squash sits flat and won’t roll.
2. If it’s too hard to cut, pierce it a few times with a fork and microwave for 2 to 3 minutes to soften the skin.
3. Using a large, sharp chef’s knife, cut it in half lengthwise from stem to base.
4. Scoop out the seeds and stringy pulp with a spoon.

How to Cook Spaghetti Squash in the Air Fryer

Step 1: Cut and seed. Halve the squash lengthwise and scoop out the seeds and stringy pulp.

Step 2: Season. Brush the cut sides and inside with olive oil, then sprinkle with salt, pepper, and garlic powder if using.

Step 3: Air fry. Place the halves cut side up in the air fryer basket. Air fry at 360°F for 25 to 35 minutes, depending on size, until the flesh is fork-tender. If both halves won’t fit, cook one at a time.

Step 4: Shred. Let the squash cool for 5 minutes. Hold each half with an oven mitt and scrape a fork from end to end to pull the flesh into long, spaghetti-like strands.

Step 5: Serve. Toss with butter and Parmesan or your favorite sauce, or serve it right in the shell.

How Long to Cook Spaghetti Squash in the Air Fryer

Size matters more than anything else for spaghetti squash air fryer time. Use this as a starting point at 360°F, and check early.

Squash size	Air fryer time at 360°F
Small (about 2 lb)	20 to 25 minutes
Medium (about 3 lb)	25 to 30 minutes
Large (4 lb or more)	30 to 35 minutes, or cook one half at a time

How to tell it’s done: A fork slides into the thickest part with no resistance, and the strands pull away from the shell easily. If the center still feels firm, add 5 minutes and check again. Overcooked squash turns mushy, so it’s better to check early.

Tips and Seasoning Variations

• Cut side up: Cooking the halves cut side up lets steam escape so the strands don’t get watery.
• Don’t overcook: Pull it as soon as it’s fork-tender; strands stay distinct instead of turning mushy.
• Shred lengthwise: Scraping from stem to base gives you the longest strands.
• Blot extra moisture: If you’re adding sauce, let the strands sit on a towel for a few minutes first.

Flavor ideas:

• Garlic Parmesan: Toss the strands with melted butter, minced garlic, and grated Parmesan.
• Italian: Add Italian seasoning before air frying, then top with marinara and mozzarella.
• Taco night: Season with chili powder and cumin, then top with taco meat and cheese.
• Brown butter and sage: Finish with browned butter and crispy sage for a holiday side.

Is Spaghetti Squash Keto?

Yes, in reasonable portions. A cup of cooked spaghetti squash has roughly 8 grams of net carbs, compared with about 40 grams in a cup of cooked wheat spaghetti. That makes keto spaghetti squash an easy way to enjoy pasta night. Pair it with a high-fat sauce like butter and Parmesan or Alfredo, and plenty of protein, to keep the meal balanced.

How to Cook Spaghetti Squash in the Oven

No air fryer, or a squash that’s too big for your basket? Prep it the same way, place the halves cut side up on a baking sheet, and roast at 400°F for 40 to 45 minutes, until fork-tender. Then shred and serve as usual.

What to Serve With Air Fried Spaghetti Squash

For a low-carb pasta night, swap the noodles in my Easy Air Fryer Spaghetti and Meatballs for spaghetti squash strands, or spoon creamy Air Fryer Swedish Meatballs and their gravy right over the top.

It also makes an easy side for weeknight proteins. Serve it with a juicy Air Fryer Butterflied Chicken Breast and garlic butter, or alongside a keto-friendly Air Fryer Flat Iron Steak. For a fall dinner with more squash, try Air Fryer Turkey Sausage Meatballs and Squash.

Storing, Freezing, and Reheating

• Fridge: Store cooked strands in an airtight container for 3 to 4 days.
• Freezer: Let the strands cool completely, blot off extra moisture, and freeze flat in a zip-top bag with the air pressed out for up to 3 months. Thaw overnight in the fridge.
• Reheat: Air fry at 350°F for 3 to 5 minutes, or microwave until warmed through. Drain any liquid that collects after thawing.

Air Fryer Spaghetti Squash FAQs

How long does it take to cook spaghetti squash in the air fryer? At 360°F, halved spaghetti squash takes 25 to 35 minutes, depending on size. Small squash can be done in about 20 minutes.

Do you cook spaghetti squash cut side up or down in the air fryer? Cut side up. It lets moisture evaporate so the strands stay tender, not watery, and the edges lightly caramelize.

Can I cook a whole spaghetti squash in the air fryer? Only if it fits with room for air to circulate. Halving it cooks faster and more evenly, and lets you season the flesh.

Do I need to preheat the air fryer? It isn’t required, but a 3 to 5 minute preheat gives you more consistent timing.

Why is my spaghetti squash watery? It’s usually overcooked or was cooked cut side down. Pull it as soon as it’s fork-tender, and blot the strands on a towel before adding sauce.

What does spaghetti squash taste like? Mild and slightly sweet, with a texture similar to al dente pasta. That neutral flavor is why it pairs with almost any sauce.

Can I eat the skin? The shell is too tough to eat, but it makes a great serving bowl.