Will be taking my first intra Japan flights (HND-OKA) this April with an 8 year old and my father-in-law.
Our flight out is at 8:50am on a Tuesday, so I'll be looking to pick up something light to eat on board - as much for entertainment as for sustenance.
Have never been to the HND domestic terminal before, and as I'm not alone, I won't really have a chance to go explore.

Does anyone have any recommendations of where I can pick something up at at 8:15am or so, particularly something interesting, tasty and decent value for money?

For the return, the Kuko Shotokan (Airport Restaurant) landside arrivals hall at OKA seems to tick the right boxes, but I'm also open to ideas. (Will be getting the shuttle to the monorail leaving the Senagajima Hotel at 3pm and our flight returning to HND is at 4:30pm on a Saturday, so I'm assuming that gives enough time)