"Chouri-shi(調理師/ちょうりし/a qualified cook)" does. (School kids often call them 'Kyuushoku-no-obachan" though...)
A kyuushoku typically consists of a main dish, such as rice or noodles, along with a protein source like fish or meat, a vegetable side dish, miso soup, and sometimes a small dessert. The specific menu and ingredients can vary depending on the school or region in Japan.