Preheat oven to 350 degrees and grease a 2-quart casserole dish.
Spread the cherry pie filling in the bottom of the casserole dish.
Place chocolate chips in a small heavy-bottomed saucepan and heat over low heat. Stir frequently until melted and make sure the heat is very low or the chocolate will burn. Let cool 5 minutes.
In a a large bowl, combine flour, sugar, baking powder, salt, and butter. Cut in butter with a pastry blender until there are no pieces bigger than a pea.
Whisk together the milk and egg and stir into the melted chocolate.
Add chocolate mixture to flour mixture and stir until blended.