Chankonabe

Chankonabe (ちゃんこ鍋^?) is a Japanese stew (a type of nabemono or one-pot dish) commonly eaten in vast quantity by sumo wrestlers as part of a weight-gain diet. While considered a reasonably healthy dish in its own right, chankonabe is very protein-rich and usually served in massive quantities, with beer and rice to increase the caloric intake.

It is not made according to a fixed recipe and often contains whatever is available to the cook. It is traditionally served according to seniority, with the senior rikishi and any guests of the heya receiving first choice, with the junior wrestlers getting whatever is left.

It is also a popular restaurant food, often served in restaurants operated by retired sumo wrestlers who specialize in the dish; the first of these, Kawasaki Chanko, was started in 1937 in the Ryōgoku district of Tokyo, home to many prominent sumo stables.