To make spaghetti squash, follow these basic steps:

1. Preheat the oven to 400°F (about 200°C).
2. Carefully cut the spaghetti squash in half lengthwise. Scoop out the seeds and membrane from the center with a spoon.
3. Drizzle the inside of each half with olive oil and season with salt, pepper, and optionally dried herbs.
4. Place the squash halves cut-side down on a baking sheet lined with foil or parchment paper.
5. Roast in the oven for 30 to 40 minutes, or until the flesh is tender and easily pierced with a fork.
6. Let the squash cool slightly, then use a fork to scrape the inside strands, which will come out looking like spaghetti noodles.
7. Serve the squash "noodles" as desired, either plain or topped with sauce and cheese.

This roasting method brings out the best flavor and texture for spaghetti squash without making it mushy. It can be a great low-carb alternative to pasta or used as a base for many dishes.