Preheat the oven to 425 degrees F (220 degrees C).
Brush both sides of the squash with olive oil, sprinkle with salt, and place cut-side up in a baking pan. Cover tightly with aluminum foil.
Roast in the preheated oven for 20 minutes. Uncover and continue to roast until tender, about 35 minutes more. Let cool slightly, about 5 minutes. Use a fork to scrape the squash flesh into a large bowl and toss with Parmesan cheese.
This is a really easy recipe to play around with and add other things you may like!