Preheat oven to 350 Degrees. Grease bottom of 13 x 9 x 2 inch pan.
Combine pumpkin, evaporated milk, eggs, sugar, pumpkin pie spice and salt in large bowl. Stir until well blended. Pour into pan.
Sprinkle dry cake mix evenly over pumpkin mixture. Top with pecans. Drizzle with melted butter. Bake at 350 F 50 to 55 minutes or until golden brown. Cool completely. Serve with whipped topping. Refrigerate leftovers. Enjoy