1Spray 9-inch square pan with baking spray with flour. In medium microwavable bowl, microwave chocolate chips uncovered on High in 30-second increments, stirring after each, until melted and smooth. Stir in frosting. Spread in pan.
2Press candy-coated candies in top of fudge. Cover; refrigerate until firm, about 1 hour. Cut into 4 rows by 4 rows.