Preheat A Grill For High Heat. In A Medium Bowl, Lightly Mix Together The Ground Beef, Worcestershire Sauce, Liquid Smoke And Garlic Powder. Form Into 3 Patties, Handling The Meat Minimally. Brush Both Sides Of Each Patty With Some Oil, And Season With Seasoned Salt. Place The Patties On The Grill Grate, And Cook For About 5 Minutes Per Side, Until Well Done.