PRODUCT INFO Leeks look like scallions (or green onions), but they're a lot larger. And their mild flavor and ease of preparation make the vegetable a favorite addition to soups, stews, pastas and more. Generally, the taste of leeks can be described as a mild onion that is slightly sweet. The younger the leek, the more delicate its flavor and texture. These are preferred for raw preparations.are a bulbous vegetable with white flesh and leafy green tops. The bulb, however, is not round, but just slightly larger than the stem nearest the roots. The more rounded the bulb, the older the leek. SEASONS Leeks are available year-round.