Ingredients
- Nonstick cooking spray or butter, for greasing the baking dish
- Two 12-ounce bags frozen mixed berries
- 1 box yellow cake mix
- 1/3 cup finely chopped walnuts
- 1/3 cup rolled oats
- 1 stick (8 tablespoons) unsalted butter, melted
- Ice cream or whipped cream, for serving
Directions
- 1
Preheat the oven to 350 degrees F. Grease a 9-by-13-inch baking dish with cooking spray or butter.
- 2
Put the berries in the prepared baking dish. Evenly distribute the cake mix over the berries. Sprinkle with the walnuts and oats. Evenly drizzle the butter over the entire dish.
- 3
Bake until firm and golden brown, about 55 minutes. Let sit 5 minutes. Serve with ice cream or whipped cream.