In a method of controlling a heating cooking apparatus, when a generated steam volume at a forced finish time Tn−1 determined based on a minimum volume-minimum steam curve does not reach a minimum steam volume B1 determined based on a slowly rising maximum volume-maximum steam curve, the generated steam volume is smaller than in the case of a food having a maximum weight. Therefore, it can be judged that heating is performed in a no-load condition with an exceedingly small generated steam volume, and the operation of the heating cooking apparatus is forcedly stopped. When a generated steam volume at a maximum detection time Tm+1 does not reach a standard steam volume A determined based on the maximum volume-maximum steam curve, it is judged that a large amount of food exceeding a maximum amount is being heated and the operation of the heating cooking apparatus is forcedly stopped.