Caramelized Pear Brie

1 (8 ounce) round brie cheese
1/2 pear, thinly sliced
2 teaspoons brown sugar
1 tablespoon chopped walnuts

Place pear slices in overlapping concentric circles to cover surface of brie. Sprinkle with brown sugar, then top with walnuts. Bake in preheated 400 degree F oven for 10 to 15 minutes, or until soft in center. Let stand 5 minutes before serving.