• Preheat the Oven: Preheat your oven to 350°F (175°C).
• Prepare the Pumpkin Mixture: In a mixing bowl, whisk together the pumpkin puree, evaporated milk, sugar, eggs, pumpkin pie spice, and vanilla extract until well combined.

Assemble the Cake:

• Pour the pumpkin mixture into the 9x13 inch baking dish, spreading it evenly.
• Sprinkle the dry cake mix evenly over the pumpkin mixture.
• Drizzle the melted butter evenly over the top of the cake mix.
• If desired, sprinkle chopped pecans over the top for added crunch.
• Bake: Bake in the preheated oven for 50-60 minutes or until the top is golden and the pumpkin layer is set.
• Cool & Serve: Allow the cake to cool slightly before serving. Serve warm, optionally with whipped cream or vanilla ice cream.