1/2 c. butter, softened
1 pkg. Betty Crocker White Cake Mix
2 cans (21 oz. each) blueberry pie filling
1/2 c. chopped nuts

Heat oven to 350 degrees. Cut butter into dry cake mix until crumbly, reserve 1 1/2 cups mixture. Pat remaining mixture lightly in ungreased 9 x 13 inch pan, building up 1/2 inch edges. Spread pie filling over cake mixture to within 1/2 inch of edges. Mix nuts and the reserved mixture. Sprinkle over top. Bake 45 to 50 minutes. Serve warm.