12 graham crackers, crushed
1 cube melted butter
1/2 c. powdered sugar
8 oz. cream cheese
1 c. miniature marshmallows
1/2 c. chopped nuts
1 sm. can crushed pineapple, drained
1 env. Dream Whip, prepared according to directions

Mix first 3 ingredients and press into glass rectangular pan as crust. Combine rest of ingredients; spread onto crust and top with blueberry pie filling.