Preheat broiler. Place bell peppers under broiler and lightly char, turning to grill all sides. Remove from broiler to a paper bag. Close bag and set aside. When peppers cool, peel, core, seed and cut into strips. Arrange peppers on a platter, alternating colors so that they form a petal, and spoon dressing over them. Sprinkle with black pepper. Garnish with capers and serve warm or chilled.
