Yellow button squash is a summer squash (species Cucurbita pepo) notable for its small size, round and shallow shape, and scalloped edges, somewhat resembling a small flying saucer.Yellow button squash can be served raw with other vegetables as part of a vegetable platter with dips, in salads, grilled, broiled, steamed, stir-fried, deep-fried, boiled, baked, or stuffed. Because of its mild flavor, it can be added to almost any main-dish recipe or pasta sauce for texture, flavour, and color.