Pick them small
Small is definitely beautiful when it comes to summer squashes. For all summer squash varieties, harvest firm young fruits, preferably either before or just after their blossoms wilt, favoring those that appear bright colored and glossy. These will have a tender texture and well-developed, mild flavor, variously described as sweet, nutty, cucumberlike, delicate, or buttery, depending on the specific variety.
The larger a squash, the tougher it becomes, with seedy, watery flesh and bland flavor. One trick for enhancing an oversized squash is to dice or grate it, sprinkle on some salt, and drain it in a colander for about 20 minutes. Rinse it and press out the excess moisture before cooking.
Summer squashes are particularly perishable, so fresh is definitely best. You can store them, wrapped to keep out moisture, in the refrigerator vegetable bin, but use them within a few days.
Summer squash are not only gung-ho growers but also versatile resources for summer meals. For cooking, all types are interchangeable, although you’ll no doubt develop favorites for different purposes. Delicate herbs and spices showcase squash’s naturally subtle flavor. But this unassuming culinary chameleon also invites more assertive, vibrant seasonings. Olive oil, garlic, onion, basil, oregano, bell peppers, and tomatoes are among the most traditional squash accompaniments, though almost any ethnic cuisine is fair game for creative experimentation. I’ve played with Moroccan and Mexican flavors in two of the recipes here. Squash provides good food value, including vitamins A, C, and B-complex, plus potassium, calcium, and fiber.
Summer squashes are amenable to many cooking techniques, including sautéing, steaming, stir-frying, deep frying, grilling, roasting, stewing, simmering in soups, stuffing and baking, and even pickling. Grated squash contributes moistness to breads and other baked goods. Quickly prepared sautés especially suit the summer season, and the required bit of cooking oil enriches squash’s low-fat flavor.