1 1/2 sticks butter, melted
1 1/2 c. all-purpose flour
1/ c. sugar
3/4 c. chopped pecans or walnuts
1 (8 oz.) pkg. cream cheese, softened
1 (12 oz.) Cool Whip
1 c. powdered sugar
1 (21 oz.) can blueberry pie filling

Mix melted butter, flour, sugar and pecans together, put in a greased 8 x 11 or 9 x 11 inch pan. Bake 20 minutes at 350 degrees. Allow to cool to room temperature. Mix the cream cheese, Cool Whip and powdered sugar together. Put on the top of the cooled cake. Place the blueberry pie filling on top of cream cheese mixture and refrigerate. Cut into squares to serve.