The only time I use the Hong Kong lounge is when I fly MH. The food offering is so limited that even MH lays on extra food for its pax.

For the morning HKG-KUL flight, where there are QF pax waiting to fly, MH pax are noted at reception and a personal tray of congee and noodles. For the early afternoon flight where there are usually no QF/BA pax around, some curry and noodles are laid out on the hotplate.