Mix pumpkin, evaporated milk, eggs and spice together well. Pour into 9" x 13" pan which has been greased or sprayed with cooking spray. Sprinkle yellow cake mix over pumpkin mixture, but DO NOT stir in. Pour melted butter or margarine over mix (again--do not stir). Top with pecans. Bake at 350 for 30 to 35 minutes. Can be served hot or cold. Serve with whipped cream, if desire.
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