Nick Kindelsperger of The Paupered Chef calls BS on the Mac Snack Wrap. His main objection is that, without the structure of brilliant middle bun, the entire production loses whatever cred it may have had:
The end result is a funnel for cheap food. Without the bread, the ingredients are exposed for the lies they are. The meat (never McDonald's strong suit), is reduced to filler without an ounce of juiciness. There is no balance, no semblance of coherent thought with this monster.