Small, squat, and vaguely UFO-shaped, patty pan squash may have left you scratching your head in the produce section. But this squash, available year-round in well-stocked grocery stores but in season during the summer, is a delicious addition to your kitchen. Patty pan squash has a mild flavor, similar to yellow squash or zucchini, and is available in hues of yellow and green. It's the perfect size for stuffing, but equally delicious when roasted or sautéed.