Is just as bad as ethnic food in America:
Americans pile lo mein and Kung Pao chicken next to crab Rangoon and fortune cookies, without regard for regional boundaries. The average Chinese person might find it weird to put those foods together on one plate. But to the average American, who can't tell Szechuan from Hunan cuisine, it's all just "Chinese" food. Similarly, in the Middle East, pizza and burgers equally conjure up the exotic national identity of "American" cuisine. Why wouldn't you eat them together?