1. Preheat oven to 350 degrees.
2. Combine eggs, pumpkin, evaporated milk, sugar, spice and salt. Mix well and pour into an ungreased 13 x9 baking pan.
3. Sprinkle cake mix and nuts over top. Drizzle with butter; do not stir.
4. Bake for 45 minutes to one hour, testing for doneness with a toothpick.
5. Serve with whipped topping sprinkled with nuts and cinnamon or nutmeg.