Classics include moules-frites (mussels and French fries), waterzooi (a broth of fish or chicken and vegetables) and hearty stoofvlees (beef stew cooked in brown beer). To keep food costs down ...
But of course one should be more inclined towards having the European, or more notably Belgian experience. Do not miss out of Waterzooi, which is a creamy fish stew; Mosselen-friet; Speculoos ...