Prefabricated dishes refer to dishes that are eaten directly after food raw materials are pretreated, heated or thawed. Melody rice is a kind of convenience food, which is processed from rice, vegetables, meat and other raw materials. In the process of melody processing, raw materials are cooked, seasoned and packaged to ensure the integrity of its taste and nutrients. Therefore, melody is not a prepared dish. It is worth noting that although Melody rice is convenient and fast, its nutritional composition and taste may not be as good as that made of fresh ingredients, so it should be eaten in moderation.