Blueberry Surprise

Yield:	10 Servings
Categories:	Fruits, Desserts

2	c	Blueberries
1/3	c	Sugar
1	cn	Crushed pineapple in juice; undrained
1	pk	White cake mix (not with pudding)
1/2	c	Chopped walnuts
3/4	c	Butter; melted