When preparing in an oven, the squash can be cooked whole or cut in half lengthwise from the stem to the bottom. Place the squash with the skin side down in a dish containing 1/2 inch of water. Cover the dish and bake for 1/2 to 3/4 hour at 375 degrees. In a microwave, cook for approximately 20 minutes in a dish with a loose cover of plastic wrap. This squash is available year round, but best during August to October.