Preheat oven to 350°.
Lightly spoon flour into a dry measuring cup; level with a knife. Combine the flour, 1 cup sugar, and 1/2 teaspoon cinnamon in a small bowl. Place the peaches in an 11 x 7-inch baking dish coated with cooking spray. Sprinkle with sugar mixture; let stand 30 minutes.
Combine 1/4 teaspoon cinnamon and 2 tablespoons sugar in a small bowl. Unfold 1 pie dough, reserving remaining dough for another use. Brush with egg white; sprinkle with cinnamon and sugar mixture. Cut the dough into 16 wedges. Place the dough wedges, coated sides up, on a baking sheet coated with cooking spray. Bake at 350° for 15 minutes or until golden brown; set aside.
Bake peaches at 350° for 30 minutes or until bubbly. Arrange crust over peaches. Serve warm.