"In Italy, pepperoni as we know it doesn't exist. Pepperoni is actually a red bell pepper. Italians will use salami picante or soppressata from Calabria, but those are all pork. The all-beef pepperoni you see in the US is more of a Hungarian tradition, it actually has nothing to do with Italy."
Folded pizza slices
“There was one kind of pizza that started in America, and it was very reminiscent of a type of Neapolitan pizza called portofolio. In Italy, they needed an inexpensive thing to take to eat at work, and they didn't have boxes, so they'd just fold it over and put it in their wallet. It was food on the go, the world's first fast food.”
“Oscar Mayer bologna, that's really mortadella. It's from Bologna, and it became very popular wherever Italians went. If you go to Buenos Aires or São Paolo, the mortadella sandwiches are huge. In Italy they're very thinly sliced. Real mortadella can look a little bit gnarly, so Oscar Mayer made it look more homogenous all the way through to be more palatable to Americans.”