1 pkg. Pillsbury Plus White Cake Mix
1 1/4 c. quick cooking rolled oats
1/2 c. butter, softened
1 egg
1/2 c. nuts, chopped
1/4 c. brown sugar, firmly packed
1/2 tsp. cinnamon
1 (21 oz.) can blueberry pie filling

Heat oven to 350 degrees. Grease a 12 inch pizza pan or a 13 x 9 inch cake pan. In a large bowl, combine cake mix, one cup rolled oats and 6 tablespoons butter. Beat at low speed until crumbly. Reserve ONE cup crumbs for topping. To remaining crumbs, blend one egg. Press in prepared pan. Bake at 350 degrees until well mixed. Meanwhile, to reserved crumbs, add remaining 1/4 cup oats, 2 tablespoons butter, nuts, sugar and cinnamon, beat well until mixed. Remove base from oven and spread with pie filling. Sprinkle with reserved crumb mixture. Return to oven and bake 15 to 20 minutes or until crumbs are light golden-brown. Cool completely. Cut in wedges or squares. Optional: Top with Cool Whip and a few blueberries in season.