Triangular eating, Triangle eating (Japanese: sankakutabe, 三角食べ) is a Japanese custom popularized after World War II in which soup, rice, and side dishes are eaten in order. The custom initially started with school lunches, and at that time, the method was to eat bread, milk, and side dishes in order.
In the past, some teachers have been criticized for forcing this method on their pupils. On the other hand, it is recommended to ensure unbiased nutritional intake.
Its antonym is "batch eating."[1]