It is very easy for United to offer this, as a Japanese option is always available for the flights in and out of Japan. It is not a specific meal that needs to be updated or tracked based on menu changes. More akin to "low fat meal" or "vegetarian" instead of a book-the-cook type of operation.

United can't even print a menu that has the champagne, hot bites, and all the wine choices listed. Don't have high hopes for them with pre-ordering specific entrees...