HEATING COOKER

Provided is a heating cooker having a grill unit structure in which the base of a cooking chamber and a lower heater are in contact with each other, wherein thermal deformation of the base of the cooking chamber is suppressed to maintain contact between the base of the cooking chamber and a planar heater, so that it is possible to suppress deterioration of the thermal conduction efficiency from the lower heater to the base of the cooking chamber and the radiant heat efficiency from the base of the cooking chamber to a cooking vessel. A heating cooker according to the present invention includes: a cooking chamber for accommodating an object to be cooked; a door that opens/closes a front opening in the cooking chamber; and a lower heater disposed in contact with the lower surface of the base of the cooking chamber, wherein the upper surface of the base of...