Line 8-inch (2 L) square glass baking dish with foil. In large bowl, stir together granola and coconut. Set aside. In saucepan, melt butter over low heat; stir in marshmallows until melted. Remove from heat. Stir in granola mixture. Stir in chocolate chips. Using greased fingers, pat into prepared baking dish. Refrigerate for 1 hour or until set. Remove from pan. Cut into 16 bars.