Hey, it's Hong Kong, there's good food everywhere; it's just gonna hit your wallet, and they're not gonna give you much food (except at Ruth's, of course)
That being said, everyone knows my two recommendations are Fat Angelo's and Main Street Stanley Bar & Cafe
Last year, I stayed at the Harbour Plaza Metropolis, and totally pigged out at the food court in the Metropolis Mall, adjacent to it. You can't go wrong in that place!
But Fat Angelo's Osso Buko