To provide a means for preventing the reduction of food temperature and keeping food at a constant temperature even when a dish is freely used at any position to solve the problem that food having a preferable temperature at the beginning of a meal gets cold with the passage of time and good taste is hard to maintain in a preferable state.

A food warming dish and a power feeding device are used, where electromagnetic induction is not used but magnetic resonance wireless power transmission is used between the food warming dish and the power feeding device to transmit power from a power feeding portion used on a table side to a power receiving portion provided on a dish side, and a heater incorporated into the power receiving portion heats the dish and warm the food.