This pie, filled with pureed pumpkin and baked until golden brown, will leave your guests longing for seconds.
Heat oven to 425 degrees. Have ready two 9-inch pie pans. On a lightly floured surface, roll out one disk of dough into a 12-inch circle, about 1/8 inch thick. Transfer to a pie pan; gently press dough into pan. Trim dough 1/2 inch larger than pan; tuck excess under, forming a thick, rolled crust. Crimp edges in a decorative pattern. Chill 20 minutes. Repeat with remaining disk of dough and pan.
In bowl of an electric mixer fitted with paddle attachment, lightly beat eggs on low speed. Add pumpkin puree, milk, ginger, sugar, salt, and lemon zest; combine on low speed. Divide filling between two crusts.
Bake pies until crusts just begin to turn brown, about 20 minutes. Reduce heat to 350 degrees, and bake until crusts are browned and filling has set around the edges, about 35 minutes; the filling with appear loose in the center, but will set as pies cool. Transfer to a wire rack to cool completely. Serve.