A grill assembly for cooking human food is disclosed that comprises a housing having a support frame, a plurality of tubular cooking members rotatably mounted with said support frame, a drive assembly for driving the tubular cooking members to rotate relative to the frame comprising an electric motor having a drive shaft, a drive chain, a drive sprocket drivingly connected with the motor shaft, the tubular members having sprockets with teeth for engaging the drive chain, and a drive chain tensioned assembly.