✔ Updated · oven, microwave and Instant Pot times, types and seasonings
Roasted spaghetti squash is my favorite swap for pasta on busy weeknights: halve it, roast it until tender, then rake it into golden, noodle-like strands with a fork. It soaks up any sauce you like.
At a glance
The one tip that matters: Roast it cut side down. The flesh steams in its own moisture and browns where it touches the pan, so the strands come out tender, not dry.
Why You'll Love This Method
- Foolproof strands, long and al dente, never mushy.
- Hands-off, with just 10 minutes of prep before the oven takes over.
- A blank canvas, ready for marinara, pesto, butter and Parmesan, or meatballs.
Cooking Times by Method
Here's how long to cook a medium spaghetti squash (about 3 pounds) each way. It's done when a fork scrapes the flesh into strands easily.
| Method | Temperature or setting | Time |
|---|---|---|
| Oven, halves | 400°F, cut side down | 30 to 40 minutes |
| Oven, rings | 400°F | 20 to 25 minutes |
| Microwave, halves | High, covered, 1/4 cup water | 10 to 14 minutes |
| Instant Pot, halves | High pressure, 1 cup water | 7 minutes + quick release |
| Slow cooker, whole | Low, pierced, 1/2 cup water | 6 to 8 hours |
Types of Spaghetti Squash
- Yellow spaghetti squash: the standard grocery-store variety, pale yellow and oval.
- Orangetti: orange-fleshed and a little sweeter, with more beta-carotene color.
- Tivoli and Small Wonder: compact varieties, often 1 to 2 servings each.
- Stripetti: a striped hybrid with a slightly nutty, sweet flavor.
Step-by-Step Photos
Here's how it comes together. Exact amounts, times and temperatures are in the recipe card below.
Tips for Success
- Pick a good squash. Look for a firm, evenly pale-yellow squash that feels heavy for its size, with no soft spots or green patches.
- Soften it to cut it. Pierce it a few times and microwave it whole for 3 to 4 minutes. The knife slides through much more safely.
- Check early. Start testing at 30 minutes. Overcooked squash turns watery and the strands collapse.
- Cut crosswise for longer strands. Slicing it into rings before roasting gives the longest noodles, because the strands run around the squash.
- Drain watery strands. If it's wet, let the strands sit in a colander for 5 minutes, or toss them in a hot dry skillet for 2 minutes.
- Season boldly. Squash is mild. I'm generous with salt, garlic and Parmesan, and a squeeze of lemon wakes it right up.
Roasted Spaghetti Squash
4
servings10
minutes35
minutes145
kcal45
minutesHow to cook spaghetti squash in the oven: halve it, scoop out the seeds, season with olive oil, salt and pepper and roast cut side down at 400°F until tender, then rake into noodle-like strands with a fork.
Ingredients
1 large spaghetti squash (about 3 lb)
2 tablespoons extra-virgin olive oil
3/4 teaspoon salt
1/4 teaspoon black pepper
1/2 teaspoon garlic powder (optional)
Directions
- Heat the oven to 400°F and line a sheet pan with parchment.
- Trim the stem end so the squash sits flat, stand it up and cut it in half lengthwise with a heavy knife. If it’s very hard, microwave it whole for 3 to 4 minutes first (pierce it a few times) to soften the skin.
- Scoop out the seeds and stringy pulp with a sturdy spoon.
- Brush the cut sides with olive oil and season with salt, pepper and garlic powder. Place cut side down on the pan.
- Roast for 30 to 40 minutes, until a knife slides easily through the skin and the edges are lightly golden. Don’t overcook, or the strands turn watery.
- Cool for 5 to 10 minutes, then flip and rake the flesh with a fork from end to end to make long strands. Season and serve.
Notes
- If the squash is larger in size then you add an additional 5 minutes to the cooking time.
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Ways to Serve It
- Marinara and Parmesan: the classic pasta swap.
- Meatballs: spaghetti and meatballs, lighter. Cook ground-meat meatballs to 160°F.
- Garlic butter and herbs: simple and so good as a side.
- Crispy bacon and greens: toss with sauteed spinach or kale and crumbled bacon.
- Pesto and cherry tomatoes: bright and fresh for summer.
More Squash Help
Curious about the rest of the squash family? My guide to types of squash covers butternut, acorn, delicata and more. For a cozy soup alongside, try this Jamie Oliver red pepper soup.
Frequently Asked Questions
How long and at what temperature do you cook spaghetti squash?
Roast halves cut side down at 400°F for 30 to 40 minutes, depending on size, until a knife slides through the skin easily. Rings cut crosswise take 20 to 25 minutes at 400°F.
How do you prepare spaghetti squash before cooking?
Wash it, trim the stem end, then cut it in half lengthwise (or into 1-inch rings) and scoop out the seeds and pulp. Brush the cut sides with oil and season with salt and pepper before cooking.
What are the different types of spaghetti squash?
The common yellow spaghetti squash is the one in most stores. Others include Orangetti (orange, slightly sweeter), Tivoli and Small Wonder (smaller, single-serving size) and Stripetti, a striped hybrid. All cook the same way; adjust the time for size.
What is the best seasoning for spaghetti squash?
Start with olive oil, salt, pepper and garlic. From there, Italian seasoning and Parmesan, butter and fresh herbs, chili flakes and lemon, or taco seasoning all work. It's mild, so season more than you think.
Can you cook spaghetti squash in the microwave or Instant Pot?
Yes. Microwave halves cut side down in a dish with 1/4 cup water, covered, for 10 to 14 minutes. In an Instant Pot, cook halves on the trivet with 1 cup water at high pressure for 7 minutes, then quick release.
I found this method so much easier than baking it whole like most recipes suggest. I like getting rid of the seeds, etc before baking. Took less time also.