Preheat oven to 365 and bake ciabatta rolls for 8-10 min. Remove from oven and split rolls and put one slice of cheese on each roll and put back into oven until cheese is melted.
Prepare au jus gravy mix per package directions.
Meanwhile, coat saute pan with non-stick spray and turn to med/med-hi heat. Place steak-umm in pan, season with seasoning salt (I ask for a side of philly cheese steak seasoning at Penn Station Subs and keep for times like this), and brown. Stack three cooked steak-umms per roll. Serve with au jus on the side. Enjoy!