A method and apparatus for improving processing whole muscle for a thinly slice meat item, such as a meat item for Philly Cheese Steaks. One implementation of the method and apparatus as disclosed and claimed herein includes grounding whole muscle and pumping the ground whole muscle through an in-line rotary multi-blade slicer and further extruding the product from the in-line slicer and pumping the product through a cooking horn. For one implementation of the method and apparatus, the product is pumped through and in-line sheeter before pumping the product through the cooking horn.