Where are great restaurants in Brussels to try the best Belgian food? I'm looking for a really authentic experience. Budget is flexible!
Although placed in the middle of the most turistic area of Brussels, Chez Léon serves the best local food and they have reasonable prices for menus. If you go there you must try the Mussels Provençale or Mussels Gratinated. Not far from this place you have Arcadi which is as well a good address for typical Belgian food (and the tartes are amazing ;))
What defines Belgian food..? But if you want some typical dishes then try http://www.spinnekopke.be The website is terrible but I have been going there for years with foreigners to introduce them to typical "Brussels" meals. Other addresses to try when in towns are Restaurant Henri, Gramm, Viva M'Bomma - all located in the same (hip) quarter of town - around the Vlaamse Steenweg/Chaussee de Flandre. Enjoy the city and welcome !