Mix the ground meat well with Magic Dust and cheese. Peel the onions, quarter them, and separate them into individual onion layers. Press a bit of the meat mixture into the center of each onion piece, then skewer the stuffed onion pieces with a soaked wooden skewer (to prevent burning). Grill over medium direct or indirect heat until cooked to your desired doneness, and glaze with BBQ sauce toward the end of the grilling time.
