The present invention provides devices and methods for forming multiple rows of meat patties. An existing single row forming machine is modified by moving the fill slot relative to the existing stroke length so that the fill slot comes in contact or fluidly communicates with at least one newly added row of cavities. This is most easily achieved by modifying the existing fill plate and by adding cavities to the existing mold plate, so that the combination of modified plates operates with the existing stroke length (which is difficult to change), to produce multiple rows of consistent meat patties.