Crispy Air Fryer or Oven Spaghetti Squash + Cooking Tips

Step-by-step instructions for cooking spaghetti squash in an air fryer, plus tips for the oven, microwave, and electric pressure cooker (Instant Pot). Use the comparison chart below to choose the best method for your kitchen.

Jump to Recipe

Use the Table of Contents in the original post to jump to the sections that help you most.

Spaghetti squash wasn’t love at first bite for me. It’s mild in flavor, and when people started using it as a pasta substitute, I stayed loyal to regular pasta. I also wasn’t sure how best to cook it.

Over time I tested every method I could think of (except grilling). Today I make spaghetti squash as a main with marinara, in a creamy casserole, or simply tossed with herbs and Parmesan as a side.

---

🤷‍♀️ What is Spaghetti Squash?

• Spaghetti squash is a medium oblong winter squash with pale yellow skin and mild flavor.
• Available year-round in many places, it pairs easily with a variety of sauces from marinara to Alfredo.
• Cooked until tender, its flesh separates into long, noodle-like strands—hence the name.
• One cup cooked has about 7.8 grams net carbs versus roughly 41.9 grams net carbs for one cup of regular cooked spaghetti, making it a great low-carb option.

📊 Cooking Methods Comparison for Spaghetti Squash

You can cook spaghetti squash in an oven, microwave, pressure cooker (Instant Pot), or air fryer. The table below compares cook time, texture and flavor for a typical 2½–3 pound squash. Cook times (except pressure cooker) assume the squash is halved and seeds removed; preheat times are included separately.

	Cook time	Texture	Flavor
Oven	40 min + 20 min (preheat)	Al dente	Excellent
Microwave	12 min + 0 min (preheat)	Soggy	Weak
Pressure cooker	15 min + 12 min (preheat)	Moist	Good
Air Fryer	15 min + 6 min (preheat)	Al dente	Best

Each method has advantages, but my favorite is the air fryer. It cooks quickly and lets you season the squash halves before roasting for more flavor. For a noticeable seasoning, use at least 1/2 teaspoon per half; 1 teaspoon is better.

👩‍🍳 Instructions

Step-by-step prep and cooking instructions for air fryer spaghetti squash follow.

Step 1

Trim the top and bottom of the squash with a sharp knife so it sits steady.

Pro tip: If the skin is very tough, puncture it in a few places and microwave 3–4 minutes to soften before slicing.

Step 2

Slice the squash lengthwise into two even halves for consistent cooking.

Step 3

Spoon out seeds and stringy pulp from the cavity with a metal spoon. For stubborn strands, kitchen scissors work well.

Step 4

Brush the flesh and outer skin with olive oil and season with salt, pepper, onion powder and garlic powder.

Step 5

Place the halves face down in the air fryer basket and cook at 375°F for about 15 minutes, depending on squash size.

Check after 15 minutes by gently scraping the cavity with a fork. When strands lift easily, it’s done.

Step 6

Let the squash cool slightly, then use a fork to scrape the flesh into noodles. Serve in the shells or on a plate.

🙋‍♀️ Can I Roast Spaghetti Squash Whole?

Yes. Roasting whole takes longer and you can’t season the flesh beforehand. Whole squash tends to be moister. If roasting whole, pierce the skin several times to allow steam to escape.

📆 Can Spaghetti Squash be Cooked Ahead?

Yes. Cooked squash keeps in an airtight container in the refrigerator for up to 5 days. Double-bag in zip-top freezer bags if needed. To reheat, place face down on a baking sheet in a 350°F oven for 10–15 minutes, then scrape into strands.

👩‍⚕️ Is Spaghetti Squash Keto-Friendly?

Yes. One cup cooked has about 10 grams total carbs and 7.8 grams net carbs, plus 2.2 grams fiber. It’s lower in carbs than regular pasta and provides vitamins and minerals while remaining relatively low in calories.

🍝 Spaghetti Squash Recipe Ideas

Ways to enjoy cooked spaghetti squash:

• Toss with olive oil, garlic, Parmesan, salt and pepper.
• Add fresh herbs like oregano or basil.
• Stir in pesto for a quick, flavorful meal.
• Top with a meaty plant-based tomato sauce as a pasta substitute.
• Use in a creamy spinach and squash casserole.

🔥 More Veggie Air Fryer Recipes

Try other simple air fryer vegetable recipes such as fingerling potatoes, Brussels sprouts, bell peppers with basil and feta, asparagus, or smashed potatoes for easy sides that pair well with spaghetti squash.

---