1. Preheat the oven to 375°F. Cut the crusts from the bread and roll the slices flat with a rolling pin.
2. Spray a large muffin tin with non-stick cooking spray. Place the bread in the cups, pushing firmly to create a bread bowl.
3. Lay the slices of bacon around the inside of the bread, overlapping ends, if necessary. Break 1 egg into each bread bowl. Bake the quiches until the egg whites have set, about 18 minutes. Garnish with alfalfa sprouts and sprinkle with pepper.
Per serving: 526 calories, 44g fat, 14g saturated fat, 556mg cholesterol, 700mg sodium, 3g carbohydrate, 1g fiber, 1g sugar, 29g protein