Abstract: A mobile cooking apparatus including a trailer vehicle having an elongated chassis with front and rear end walls, open sides, and a platform supporting one or more elongated cooking units and at least one cover member having foldable cover segments adapted to be moved downward over the chassis in a closed position to confine the cooking units within the chassis and moved upward to an open position in which the cooking units are exposed for cooking operations upon the chassis. The cover members are so constructed that a side cover segment clearly displays indicia, such as advertising material in either its open or closed position. Each cooking unit includes an elongated burner unit which is detachable mounted upon the chassis and which detachably supports a cooker member of any one of various types, such as a deep-fat fryer, boiler, broiler, solid griddle or an open grill.