I'm surprised it's a simmered katsu and not a tanin-don. A lot of the times the food is actually related to the story through it being a pun or some other symbolic connection or something. Not always, but still.
Like the mochi menu being about jealousy because "grilled mochi" and "jealousy" are both "yakimochi" in Japanese. Or the furikake chapter where the 3 flavours of furikake symbolise the 3 boyfriends that the woman has.