Also known as disco beef, shaken beef, stir crazy beef, but here, you're in for a special treat. We use Filet mignon, cut into small cubes, marinated in a special sauce for hours, then stir fried with red onion slices, and plated with some lettuce, red & green bell peppers, and steamed white rice. "Bo luc lat" [BAW-LUKE-LOCH] is the traditional name of this meal from Vietnam