Abstract: A pre-lined carton of the present invention includes a carton formed from a blank having a liner adhered to the inner surfaces of the carton. The carton includes a pour spout which is movable between a closed position and an open position. The carton has a panel which covers the pour spout and is removed to expose the pour spout. The opening created by the removable panel is sized to allow the spout to be moved from its closed position to its open position. The spout is part of a mounting assembly which includes a mounting panel to which the spout is hingedly connected. The mounting panel is glued to the inner surface of the container so that the spout will be between the mounting panel and the container wall. The spout assembly mounting panel includes an opening which communicates with the spout, and which is aligned with the removable panel of the container.