Kitchen Worker is a broad term that encompasses many different roles. A CHEF is someone who is in charge of the kitchen and is responsible for creating menus, managing staff, and overseeing food preparation. A COOK is someone who prepares food according to recipes and instructions from the CHEF. A Sous CHEF is a subordinate to the CHEF and is responsible for assisting with menu planning, food preparation, and supervising other kitchen staff. All three roles are essential to the successful operation of a kitchen.