Lightly toast insides of rolls in a buttered pan, set aside Thinly slice steak, season with salt & pepper and sauté until lightly browned. Add BBQ sauce and steak sauce and simmer on low for 5 minutes or so Heat up the prepared mac & cheese while the steak is simmering Cut rolls in half Assemble sandwich starting with one bottom bun half, add steak, cheese, top bun, mac & cheese, cheese, bottom bun, steak, cheese and top bun. Put it in the oven for a minute or two to melt the cheese