Collards are extraordinarily nutritious and make delicious greasy greens, braised in oil with garlic. It's easy to pluck a big bunch and cook them quickly. They accompany nearly any dish well. (Tip: slice leaves across the stem into thin strips before cooking. After cooking, it's easy and fun to twirl cooked tender greens around your fork--like noodles--or to pluck them with chopsticks from a steaming bowl.)