Stir in pecans. Spread the pumpkin layer into the pie shell, then carefully spoon the pecan mixture over it. Bake in the upper third of a preheated oven for 20 minutes, then reduce to for 20-30 minutes more. The filling will puff slightly, but the center will not be completely set. Cool on a rack.
Notes Serve warm or at room temperature.
Reheat in a preheated oven for 10 to 15 minutes.