I was watching a show on the history of food on the History Channel and they
discussed the fact that Chop Suey was not invented in China or the orient but
rather in the United States. It's been a couple years since I watched that
show, but IIRC it was an oriental guy who owned a restaurant in San Francisco
in the late 19th or early 20th century and came up with this dish that had a
little bit of everything in it.

This show also mentioned that Alfredo Sauce was created in the US. Apparently,
the actor Douglas Fairbanks used to eat at some restaurant in LA (it may have
been the Brown Derby), and whenever he ate there, he had the cook make him a
special dish which consisted of spaghetti noodles or linguine, tossed with a
sauce made of melted butter and parmesan cheese. After a while, other patrons
wanted to try this dish and it was put on the menu. At some point not long
after, one of the cooks hit on the idea of adding cream to the butter and
parmesan mixture and the result was Alfredo Sauce.

Michael O'Connor - Modern Renaissance Man

"The likelihood of one individual being correct increases in a direct
proportion to the intensity with which others try to prove him wrong"
James Mason from the movie "Heaven Can Wait".