Originally Posted by
CanucksHKG
I heard Cafe design Coral's a good option. And it fits well with your requirements too.
Alternatively, you can try Tsui Wah.
I'm not sure a HKD 24 rice bowl at CdC or a spam and egg sandwich at Tsui Wah would classify as "decent" and where you'd head for one night in Hong Kong. Atmospheric and local? Yes. Worth eating there if all you have is one night? No.