Line a large baking sheet with parchment paper. Melt the chocolate candy melts in the microwave according to the package directions. Pour onto the lined baking sheet and evenly spread into a very thin layer with a spatula. Chill in the fridge until hardened.
Melt the white candy coating in the microwave according to the package directions, then use the pink food coloring to tint it the desired color. Evenly spread on top of the layer of chocolate and sprinkle the M&M's and heart sprinkles on top. Press lightly to adhere. Chill in the fridge until set, then remove from the parchment paper and break into pieces.