Abstract: An improved removable cooking surface assembly for the upper movable heated platen of a two-sided cooking device includes a cooking surface device having a planar rigid heat-conducting metal platen with threaded studs bonded to its upper surface, the studs being aligned with bores in an upper movable heat platen, the heat-conducting plate being coated on its lower surface with a layer of non-stick synthetic coating. The coated platen is removably connected with a heated platen and extends in contiguous relation across the lower surface of the heated platen for uniform heat transfer from the heated platen to the coated platen and the food product being cooked. Following cooking of the food product, the upper platen is raised, and the food product remains on the lower grill surface because the coating of the upper surface prevents the product from sticking to the non-stick coating over the heated platen.