How to Make It
Fit one pie dough circle into a 9-inch pie plate lightly coated with baking spray. Gently press dough against bottom and sides of pan. Chill dough.
Preheat oven to 350°.
Combine cranberries, apple, and lemon juice in a large bowl. Sprinkle with sugar, cornstarch, and salt; toss well to coat. Add 2 packages raspberries; toss gently to combine. Spoon mixture into prepared pie dough. Arrange remaining package of raspberries over top of cranberry mixture.
Gently roll remaining pie dough circle into a 10 x 5-inch rectangle. Cut dough lengthwise into 10 (1/2-inch) strips. Arrange in a lattice design over raspberries. Seal dough strips to edge of crust. Combine 1 teaspoon water and egg white, stirring with a whisk. Brush lattice and dough edges with egg mixture. Bake at 350° for 55 minutes or until crust is golden and filling is bubbly, shielding edges of piecrust with foil, if necessary. Cool pie completely on a wire rack before slicing.