Conversation so far:
what ingredients are in a philly cheesesteak
Philly Cheesesteak is a sandwich made with super thinly sliced ribeye steak, caramelized onion, and provolone cheese.
did the philly cheesesteak come from philadelphia
A popular regional fast food, the cheesesteak has its roots in the U.S. city of Philadelphia, Pennsylvania.
who invented the cheesesteak
Philadelphians Pat and Harry Olivieri are often credited with inventing the cheesesteak by serving chopped steak on an Italian roll in the early 1930s.

Question: what kind of variations are there
Self-contained rewrite: what kind of variations of the cheesesteak are there