One of the most popular winter squashes that begin to appear in the fall, acorn squash can be enjoyed grilled, baked, roasted, stewed, pureed, or most popularly, halved-and-stuffed. Look for a squash with a dull, dark green rind that's free of blemishes. It should feel heavy for its size. Keep acorn squash out of the refrigerator and store it instead in a cool, dry place. Acorn squash will last at least two months in the right conditions.