Preheat oven to 425 degrees F. Line a 10-inch pie plate or quiche form with pastry, and partially bake for about 8 minutes. Sprinkle the crumbled bacon, cheese, scallions, and pepper into the pie pan. Beat the eggs slightly, then beat the remaining ingredients into the eggs and pour the mixture into the pie plate. Bake for 10 minutes. Reduce the heat to 300 degrees F and bake for 30 to 40 minutes, or until a knife tests clean. Let rest for 10 minutes before cutting.