Try this Pumpkin Dump Cake recipe, or contribute your own.
Mix first 8 ingredients together. Pour into a 13x9 inch pan. Sprinkle cake mix evenly over pumpkin mixture. Sprinkle chopped pecans over the cake mix, then pour melted margarine evenly over the cake mix. Bake at 350 degrees for 1 hour (or more). Watch time as ovens vary somewhat. Serve with Cool Whip on top.