Heat the oven to 350°F and spread the cranberry sauce evenly in a 9-by-13-inch dish.

Distribute the drained mandarin oranges over the sauce.

Cover with dry cake mix, scatter pecans over it and drizzle melted butter across the surface.

Bake for 45 to 50 minutes until the crust is golden and cranberry filling bubbles at the center.

Rest 30 minutes before serving.