Deep-Dish Pear Pie

5 Anjou pears

2 tablespoons Unbleached white flour

1/2 cup Sugar

1/8 teaspoon Salt

1 cup Nonfat yogurt

1 Egg

1/4 teaspoon Grated nutmeg

1 teaspoon Vanilla extract

1/4 cup Sugar

1/4 cup Unbleached white flour

1/2 teaspoon Cinnamon

2 tablespoons Margarine

1 package Baked pie crust

Preheat oven to 400 F. Peel pears and cut into bite-size pieces. Set aside. In a large bowl, combine remaining filling ingredients and fold in pears. Pour pear mixture into pie crust and bake at 400 F for 15 minutes Lower heat to 350 F and continue baking for 25 minutes more. Mix together topping ingredients. Remove pie from oven and sprinkle topping over filling. Raise heat to 375 F and bake until topping is brown.