Favorite Philly foods: Cheesesteaks, pretzels and hoagies

During a "Sunday Morning" visit to Philadelphia, correspondent Susan Spencer shares the love for three traditional food favorites in the City of Brotherly Love. The sacred Philadelphia cheesesteak For more than a few Philadelphians, cheesesteak is a sacred cow. "I hold it close to my heart," said Frankie Olivieri, the third-generation owner of Philly's legendary Pat's King of Steaks. "I tell people, and if it wasn't for, you know, Pat's Steaks and cheesesteaks, who's gonna come look at a bell with a crack in it?" For non-Philadelphians, a cheesesteak sandwich is thinly-sliced ribeye on an Italian roll with onions and a choice of cheese. Take note: The meat is thinly sliced, never chopped! "Because, I mean, God gave us teeth," Olivieri laughed. "I mean, it's a steak sandwich, it's not grind meat. If you want a chop cheese, you go to New York. So for me, it's sacrilegious to chop the meat." Olivieri says thinly-sliced meat is key to designing the perfect Philadelphia Cheesesteak sandwich. That, and (brace yourself) big globs of old fashioned Cheez Whiz. An authentic Philly cheesesteak sandwich, for which the meat is thinly sliced, never chopped! CBS News Asked how many cheesesteaks he's consumed in his life, Olivieri estimated at least half a million. …