1 cup butter
1 cup white sugar
1 cup packed brown sugar
2 eggs
1 teaspoon vanilla extract
1 cup pumpkin puree
1 (18 ounce) can pumpkin puree
1/3 cup mini semisweet chocolate chips
Preheat oven to 350 degrees F (175 degrees C).
In a medium bowl, cream together the butter, white sugar and brown sugar until smooth. Beat in the eggs, one at a time, mixing well after each. Combine the pumpkin, mini semisweet chocolate chips and pumpkin pie filling. Mix thoroughly. Pour mixture into pastry shell and refrigerate until firm. Roll back pastry to seal edges of pie. Cut into 1/2 inch slices.
Bake at 350 degrees F (175 degrees C) for 45 minutes or until toothpick inserted in center comes out clean.