Coming from Germany, it took me a while to get used to American food - or rather, I missed the German food a lot. Now, I can find most things in the continental stores and supermarkets, plus, I find that my taste buds have changed. Things I used to LOVE back home just don't taste the same.
Living in California, it cracks me up that other states have "California [something]" on the menu, and all they do is add bacon and avocado. (Sometimes sprouts). lol
For me it was hysterical when people would bake me a German Chocolate Cake. They were so surprised when I told them that it is made originally with chocolate from a guy named German. (I really don't like that mushy topping).
The other eye-opener was those well-meaning folks who "fixed" Sauerkraut by heating a can of kraut. YUK! That is the worst way to ever make the dish which I love when it is prepared properly.