Line a 12- to 13-inch pizza pan with foil; grease foil and set aside. Press cookie dough slices into prepared pan to within 1 inch of the edge of the pan. Shape a pumpkin stem in dough. Bake in a 350 degree F oven for 15 to 20 minutes or until browned and center appears set.
Immediately sprinkle with chocolate pieces; drop peanut butter by spoonfuls atop chocolate pieces. Let stand for 5 minutes. Gently spread chocolate and peanut butter over warm crust; mixture will swirl slightly.
Top with candies, peanuts and fudge topping to make a pumpkin face. Chill for 1 hour or until chocolate mixture is set. Cut into wedges to serve. Makes 16 servings.