<P> Common additions include sautéed onions, bell peppers, mushrooms, mayonnaise, hot sauce, salt, pepper . </P> <P> In Philadelphia, most cheesesteak places use Amoroso rolls; these rolls are long, soft, and slightly salted . One source writes that "a proper cheesesteak consists of provolone or Cheez Whiz slathered on an Amoroso roll and stuffed with thinly shaved grilled meat," while a reader's letter to an Indianapolis magazine, lamenting the unavailability of good cheesesteaks, wrote that "the mention of the Amoroso roll brought tears to my eyes ." After commenting on the debates over types of cheese and "chopped steak or sliced," Risk and Insurance magazine declared "The only thing nearly everybody can agree on is that it all has to be piled onto a fresh, locally baked Amoroso roll ." </P> <P> American cheese, Cheez Whiz, and provolone are the most commonly used cheeses or cheese products put on to the Philly cheesesteak . </P> <P> White American cheese, along with provolone cheese, are the favorites due to their mild flavor and medium consistency . Some establishments melt the American cheese to achieve the creamy consistency, while others place slices over the meat, letting them melt slightly under the heat . Philadelphia Inquirer restaurant critic Craig LaBan says "Provolone is for aficionados, extra-sharp for the most discriminating among them ." Geno's owner, Joey Vento, said, "We always recommend the provolone . That's the real cheese ." </P>

What is the traditional cheese on a philly cheese steak