This is a great way to prepare grilled hamburgers!
Although I have not made this recipe exactly, I have made a variation ... cheese, onion, bread crumbs (as in meat loaf). Will remember to add bacon with the next grilled burger supper menu. Nice flavor touch!
Two additional notes: adding the bar-b-que sauce directly to the ground beef provides additional flavor and moisture.
To prevent hamburger patties from "bulging" in the middle, poke a depression in the middle of the patties before grilling.