This recipe was originally demonstrated on a Disc-It outdoor grill (think of a propane-powered wok on steroids), but you can grill these burgers as well. Read more about the Disc-It and burgers in Mark Masker's article here.
Brazil, the largest country in South America, was colonized by the Portuguese hence the spelling empadinhas or empadas. This Bahian-style empada filling can also be made with scallops or for a variation, used in puff pastry.