They have finally uploaded the menu for that flight. They are serving Japanese breakfast for the HKG-HND flight and regular menu (same as JL735/731's) on HND-HKG

Here's the link for the HKG-HND menu for July.

https://www.jal.co.jp/cgi-bin/jal/in...6&Submit2.y=11

It has grilled mackerel, beef roll, Japanese rolled egg, spinach and fried bean curd, some kind of rice congee with mushroom, japanese cold noodles, and fruit.