Heat oven to 350 degrees (F).
In a large bowl, combine cake mix, 6 tablespoons butter, and 1 cup oats. Mix until crumbly.
Reserve 1 cup of this dry mixture for topping.
To remaining dry mixture add 1 egg and mix well until blended.
Press mixture into greased 9" x 13" inch pan to form bottom crust.
Pour cherry pie filling over this crust.
With reserved dry mixture, add remaining 1/4 cup oats, 2 tablespoons butter, nuts, and brown sugar. Beat until thoroughly mixed.
Sprinkle carefully over cherry mixture.
Bake for 30 to 40 minutes or until golden brown.
Allow to cool.
May be served with whipped cream or ice cream.
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