01 - Preheat oven to 350°F and lightly grease a 9x13-inch baking dish.
02 - Evenly spread the pecan pie filling across the bottom of the prepared baking dish.
03 - In a mixing bowl, whisk together eggs, vanilla extract, and salt until well combined. Gently pour the mixture evenly over the pecan filling.
04 - Sprinkle the dry yellow cake mix uniformly over the top, ensuring even coverage; do not stir.
05 - Drizzle melted butter evenly over the dry cake mix to moisten as much surface as possible.
06 - Scatter chopped pecans over the top layer.
07 - Bake in the preheated oven for 40 to 45 minutes, or until the top is golden brown and bubbling at the edges.
08 - Allow to cool slightly. Serve warm, topped with whipped cream or vanilla ice cream if desired.