Leeky vegetables is a term used to describe onions. Onions are a type of vegetable that are widely used in cooking and are known for their strong flavor and smell. They are also a popular ingredient in salads and other dishes. Onions are a member of the Allium family, which includes garlic, chives, and leeks. Onions are a versatile vegetable that can be cooked, eaten raw, or used as a garnish.