If you’re stuck in a rut with onions, how about leeks? Milder, sweeter, and more complex than yellow onions, leeks are amazingly versatile. Use them in stews or soups, sauté them with other vegetables, or prepare them as a side dish on their own. They are good hot, cold, or room temperature. Although they are big and tough in their raw state (I think they resemble scallions on steroids), when cooked leeks are surprisingly tender. Although they are almost always cooked, you can even use very thin slices of raw leek in salads.