Summer squash is available all year round which may confuse people. The name refers to a squash harvested when it’s not fully mature. The skin is soft and thin while the flesh is a softer texture. Some of the most popular and familiar varieties are: zucchini, pattypan squash, cousa squash, crookneck squash. Summer squash is perfect roasted, grilled, sautéed, or stuffed.