The Hamburger: A History.

It's the quintessential American dish, all right, but maybe not for the reasons you think. As cultural historian and food writer Josh Ozersky notes, the hamburger's story is one of immigrant origins (the chopped "Hamburg steak" brought over from Germany) and its adoption as cheap meal for the factory workers of an emerging industrial superpower. And with the rise of the Golden Arches, Ozersky tracks its further transformation into a commodity that would change the way much of the world eats: the American Century on a bun.

I found this review on B&N's website.  Who knew there was enough history to write a book.  I might have to add this to my Nook and check it out.  Of course.... right now I'm reading 4 other books so it will have to wait.