03Whisk eggs, half and half, milk, 1/2 teaspoon salt, 1/2 teaspoon pepper, and nutmeg in large bowl to blend. Stir in 1 cup Fontina cheese and sautéed mushrooms. Pour filling into crust. Sprinkle remaining 1/2 cup cheese over quiche.
04Bake quiche until puffed, golden brown, and just set in center, about 45 minutes. Cool 30 minutes. Cut into wedges.