The German version is different than the current Turkish version apparently.
The Turks in Ankara want to prohibit the Turks in Germany from making it the way they typically make it in Germany and marketing it as döner kebab.
The EU would like to eliminate American-made Parmesan cheese from the American market, which is partially why the story is amusing.
The story also describes what the Ankara Turks want döner kebab to officially be and the dubious change to beef instead of lamb.
The slicing of the meat is said to date back centuries so some of the meat of a lamb on a spit could be eaten before the whole lamb is cooked.