Peggy's Berry Dump Cake

Peggy's Berry Dump Cake

Recipe shared by participant Peggy

Ingredients:

Nonstick cooking spray or butter, for greasing the baking dish

Two 12-ounce bags of 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

Optional: whipped cream or vanilla ice cream to put on top when serving

Instructions: