Steam them in a covered pot with a small amount of water until tender
Boil them briefly in salted water, then drain well
Sauté them in a skillet with oil or butter over medium heat
Roast them on a baking sheet at high heat until browned and heated through
Microwave them in a covered microwave-safe dish with a little water
Add them directly to soups, stews, casseroles, or stir-fries
Season after cooking with salt, pepper, herbs, or spices
Avoid overcooking to prevent sogginess