The tubular leaves and pseudostems (scallion) of green onions are edible, and are suitable for raw or cooked food. Onion is a very important vegetable condiment, especially for fish and shrimp and other aquatic products.

Welsh onion is an important spicy dish, which is spicy and warm, and can increase appetite when eaten. Green onions dipped in sweet sauce, pancakes rolled with green onions and mutton fried with green onions are the most common ways for people to eat.