I’m staying at the *coughs* airport for a residential school
But I’m planning a couple of excursions at least!
There Is a great Italian restaurant in Vilvoorde just round the R0 from the airport.
http://www.testarossi.be/
The Bloke who runs it Alain has a few restaurants and seems to flit between them, the Vilvoorde one has funny opening hours and is shut on some midweek nights plus you have to book, if you are in the area it’s worth seeking out.
I worked in Brussels for 3 months and we ate there whenever we could.
For a posh meal in Brussels I rate vert de Gris
There is a nice restaurant called Greenwich on the rue Des Chartreux and another just opposite and up a bit where the 2 roads meet, I ate at both a few times and noticed the owners would pop in to each others for a drink, it’s much better looking around areas like this than those hideous restaurants that line the roads near the main station with hawkers trying to get the tourists in. I would rather eat where the locals go than tourists.