Summer Squash Unlike winter squash, summer squash can be eaten rind, seeds, and all. The different varieties vary in size, shape, and color, but they can be used interchangeably in recipes. Select summer squash that's small and firm. It needs to be cooked before serving, and for a longer time than other summer squash. Cooked chayotes make good low-fat substitutes for avocados.
Green zucchini is the most popular, but some grocers also carry a bright yellow variety.