Combine cake and nut meats in a medium bowl. Stir in evaporated milk and melted butter or margarine. Blend well. Spread half of cake mixture into a greased 9x13 inch pan. Bake at 350 degrees for 15 minutes. Remove from oven. Immediately place Rolo pieces, cut side down, over hot crust. Drop remaining cake mixture by teaspoonfuls over Rolo pieces. Bake at 350 degrees for 25 to 30 minutes or until lightly browned. Cut in squares. Randy Rigg