Chocolate chip pie with walnuts

Pie filling (semi-sweet chocolate (sugar, unsweetened chocolate, cocoa butter, soy lecithin, vanilla bean seeds), margarine (palm oil, water, soybean oil, salt, whey, mono - and diglycerides, soy lecithin, natural butter flavor, beta carotene for color, vitamin a palmitate), brown sugar, sugar, eggs, walnuts, enriched flour (wheat flour, malted barley flour, niacin, reduced iron, thiamine mononitrate, riboflavin, folic acid), salt, canola oil, xanthan gum), crust (wheat flour, vegetable shortening (palm oil, soybean oil, mono - and diglycerides), water, dextrose, salt, nonfat dry milk).