I use one of these a Vertical benchtop rotisserie and just get lamb, chicken, beef or pork mince, spice it up how we like it, add breadcrumbs and an egg or two to bind it all together and then just mould it like a big meat loaf, you can start carving the outside after about 40 minutes and just leave the rest to keep cooking. It works well.
I suppose you could layer thin strips of the meat of your choice onto it and that would work as well.