A Japanese meal is offered on the NRT flight. I think it’s only in Y/C as I’ve never seen the option in F.

edit: only in J. Here is what the Swiss web site has to say:This menu is available in Business Class from and to Tokyo (LX 160 and LX 161); must be booked in advance. Please contact our Service Center at least 24h in advance to book your Japanese meal.

Starter: Soba noodles.
Main course: Japanese style with rice, miso soup and marinated vegetables.