To solve the following problem: conventionally, when cooking a plurality of dishes simultaneously in a single cooking container such as a pot or frying pan, a partition is provided or the like inside the container, however, there has been difficulty in the simultaneous cooking, such as infiltration of oil or juice or the like or mixing of droplets, or not being able to separately pour liquids such as sauce or soup.

A plurality of dishes may be simultaneously cooked without mixing, using a single stove burner, by providing separated containers 1, 5 which may be separately operated. In the case of a shallow-bottomed (frying-pan shaped) separated container, for example, a hamburg steak and sauce may be cooked simultaneously and separately, and the cooking container of the sauce may be separated for pouring when serving the dish. Furthermore, in the case of a deep-bottomed (pot-shaped) separated container, even when cooking food such as fresh noodles whose texture changes by a degree of boiling or by a very short period of time, the container for the noodles and for the soup may be boiled and cooked simultaneously and separately, which allows cooking without overboiling the noodles and cooling the soup.