We made one in our oven once, Im not sure how this recipe would turn out on the smoker, probably wouldn't hurt :). After rolling the turkey out, we spread some Bertolli Alfredo sauce on it, then covered it with swiss cheese, fresh spinach leaves, and then some chopped cooked bacon. We then rolled it up and coated the outside with an Italian bread crumb/shake and bake mix. It was very good.
Edit-Found the pics, it was sauteed mushrooms in bacon.