Pumpkin and zucchini join forces to create a moist, subtly spiced dessert that screams fall comfort. You can pretend it's healthy—hey, it's got veggies, right?—but really, it's just an excuse to eat cake for dinner.
Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking dish.
In a large mixing bowl, combine the shredded zucchini, pumpkin puree, eggs, sugar, vanilla extract, vegetable oil, cinnamon, nutmeg, ground cloves, salt, baking powder, and baking soda. Stir until well combined.
Dump this mixture into your prepared baking dish and spread it out evenly.
Sprinkle the yellow cake mix evenly over the zucchini-pumpkin mixture.
Drizzle the melted butter over the top of the cake mix. Try to cover as much as possible, but don’t worry if it looks uneven—that’s the beauty of a dump cake!
If using, sprinkle chopped pecans over the top.
Bake for 45-50 minutes, or until the top is golden brown and the edges are bubbling.
Let the cake cool slightly before serving. Top with whipped cream if you’re feeling extra fancy (or hungry).