Saint Augustine advised, “When in Rome, do as the Romans do.” So, when quarantining outside of Philadelphia, the cheesesteak capital of the U.S., I started making cheesesteak sandwiches but with a little twist. Instead of thinly sliced beef, I used the “meat of the vegetable world,” mushrooms. The result was a lighter, less fatty but no less delicious mushroom cheesesteak. History of an iconic sandwich Legend claims that, in 1930, tired of dining on hot dogs, brothers and South Philadelphia hot dog stand owners Pat and Harry Olivieri asked a local butcher for beef scraps. The two fried this beef alongside some onions from their condiment tray and stuffed the mixture into rolls. When a passing cab driver asked to buy their hot, juicy dinners, a culinary classic was born. By the 1960s, cheese topped the beef, giving the sandwich its name, “cheesesteak.” Roughly 90 years after its inception, a debate rages over what makes a great cheesesteak. Some swear by cheese, while others demand Cheez Whiz, the topping used at Pat’s King of Steaks, …