Pumpkin Pie

3/4 cup packed brown sugar
1 3/4 teaspoons pumpkin pie spice
1/4 teaspoon salt
1 (12-ounce) can evaporated low-fat milk
2 large egg whites
1 large egg
1 (15-ounce) can unsweetened pumpkin (or you can use what you made after Halloween :)
Pie crust

Position oven rack to lowest position.
Preheat oven to 425°.
To prepare filling, combine first 6 ingredients in a large bowl, stirring with a whisk. Add pumpkin, and stir with a whisk until smooth.
Pour pumpkin mixture into the crust. Place pie plate on a baking sheet. Place baking sheet on lowest oven rack. Bake at 425° for 10 minutes. Reduce oven temperature to 350° (do not remove pie from oven); bake an additional 50 minutes or until almost set. Cool completely on wire rack.