Place half of the chocolate chips and half of the frosting into a microwave-safe bowl. Heat in the microwave in 30-second intervals, stirring well until it is fully melted and smooth.
Stir in green food coloring. Pour the mixture into a baking dish. Freeze for at least 15 minutes. Place the remaining chocolate chips and frosting into another microwave-safe bowl.
Heat in the microwave in 30-second intervals, stirring well until it is fully melted and smooth. Stir in the pink food coloring.
Pour the mixture over the green layer and top with chocolate chips. Let sit until it is completely set. Cut into squares.