Find the Brussels Stock Exchange, face away at the three streets stemming opposite. Take the left most street until you see the large tree on your left. Eat here. Those were the words spoken by a new Belgian acquaintance. Like a man who drank too much absinthe and scotch (I had), I "smoothly" bumbled my way to this restaurant at 22:45h. Like a hazy red beacon, it's sign beckoned from the tree's branches (from another perspective).
I'm very thankful for this recommendation. It's great to enjoy good multi-cultural restaurants at affordable prices. You can thank Belgian's liberal immigration policy for this. The service was friendly here also. Brussels is more service oriented than Portugal while the tipping policy is identical. This means less frustration and a happier dining experience.
More art, other lit areas as seen through the stairs. The WC is tucked around the stairs.
37, Place Saint-Gery 1000 Bruxelles, Brussels. Total bill: €16 (rice crisps complimentary).