Preheat the oven to 400 F. Slice the spaghetti squash in half. Place on a baking sheet or in a baking dish, cut side up. Cook for 1 hour.

When squash is cool enough to handle, use a fork and remove the stringy flesh, placing it into a large bowl. Add the butter (the squash should be warm enough to melt it), parmesan, parsley, salt and pepper. Combine well and serve!