And fajitas are Texan, not Mexican.
Our sushi barely resembles what is in Japan
The list is endless.
I remember watching an NHK segment a few years ago where Japanese on the street (in Japan) were offered samples of American types of rolled sushi; their response was that some of it tasted OK, but it wasn't sushi.
Also, hibachi cooking was invented by a Japanese wrestler in NYC, Rocky Aoki, who created a form of Japanese-like cuisine that Americans would eat, and called it red rose (Benihana). Later, he opened a restaurant in Tokyo called Benihana of New York, for the Japanese who wanted to find out what Americans thought was Japanese food.