This wonderful and easy recipe was given by a friend who recommended using skirt steak; I have adapted it to work with any cut of steak, even a cheap chuck steak. In other words, it works whatever your budget is. Most of the work can be done in advance; just save the last 30 minutes of baking for before serving. I have been told that this reheats well, but we've never had enough leftover to know.... Using scallions here is the key to the recipe; do not substitute other onions. That said, you can use absolutely any type of barbecue sauce since they all work well.