The term ASIAN LEGUME can be solved by the four-letter word SOYA. Soya is a type of legume native to East Asia, and is widely used in Asian cuisine. It is also known as edamame, soya bean, or Chinese pea. Soya is a highly nutritious food, containing high levels of protein, fiber, and essential vitamins and minerals. It is often used as an alternative to meat, and is a popular ingredient in vegetarian dishes.