In medium bowl, combine dry cake mix, oil, and eggs. Spray hands with cooking spray and press 2/3 of mixture into pan. Set aside remaining dough.
3
In microwave, melt chips, milk and butter for 45 second intervals. Stir until smooth and pour over crust. Drop teaspoonfuls of remaining cake mixture on top.
4
Bake for 20-25 minutes or until lightly browned. Cool completely before cutting.