American cheese is a lot of things. It’s not technically “real” cheese the way others are, at least according to the FDA, which deems it a “pasteurized processed American cheese food.” ...

Here's what you do: You go to Guido's Pizzeria and Tapas on the Hill, and you say, "Chorizo pizza with mixed cheese." You see, Spanish chorizo bears almost no resemblance to its Mexican namesake.

And God bless him for that: Ruma's Deli is a haven for Provel, that processed cheese food that makes St. Louisans drool and leaves out-of-towners aghast. Ruma's signature sandwich is the Gerber ...