Belgian cuisine is neither as highly regarded, nor as well known as its French counterpart, but there are still many restaurants that will serve the traditional dishes, and one of the best is Aux Armes de Bruxelles, which is highly recommended, and the Waterzooi (creamy chicken and vegetable soup) is especially good.
The Blue Elephant is a Thai restaurant that has dominated the city for almost 20 years, and is still very popular at the weekend.
L'Idiot du Village serves traditional Belgian and French food, and can be found on Rue Notre-Seigneur. The place only has 8 tables, so it is vital to book in advance, although should you be lucky enough to get a reservation, then you will not be disappointed.