We have a lot of good quality restaurants in the area (the belgians adore good food...) each is fine in its own character.
This is a selection by distance from Chateau de Hodbomont
Brasserie "Le beaubourg) in Theux simple, but good quality :
also in Theux, (4km) fine and cosy
our favorite in Spa (8km)
also very good and in a nice old building in Spa (8km):
Au Pot de Beurre, Pepinster (10km) secret tip, special and very good cooking and wines: