Shaved porterhouse steak with grilled onions, provolone, and American on a 10" Amoroso roll. Served with fries.
Philly cheesesteak at the diner is the Philadelphia sandwich transplanted to a national context — shaved ribeye cooked on a flat-top with onions, topped with Cheese Whiz or provolone on a hoagie roll. The debate about Whiz vs provolone is a Philadelphia culture war; outside Philadelphia, both are acceptable. The quality of the beef and the heat of the flat-top determine the quality of the sandwich.