1 can (12 oz.) blueberry pie filling
1 pkg. (18 1/4 oz.) white cake mix
1/2 c. melted butter
1/2 to 3/4 c. chopped nuts

Grease bottom and sides of an 8x19 inch pan. Pour pie filling on bottom. Sprinkle cake mix dry on top of pie filling, even it out with a spoon. Drizzle melted butter on top. Sprinkle with chopped nuts.