1Heat oven to 350°F. Generously grease bottom and sides of 9- or 10-inch square pan with shortening or cooking spray.
2In large bowl, stir cake mix, melted butter, egg, milk and pecans until combined. Fold in chocolate chips and coconut. (Batter will be thick.) Lightly and evenly press batter in pan.
3Bake 20 to 25 minutes or until toothpick inserted in center comes out clean. Cool completely in pan on cooling rack, about 2 hours. Cut into 4 rows by 4 rows.