Preheat the oven to 350° F.
Open the biscuits and flatten each one into a circle about 5 inches wide. Place the flattened biscuits on a baking sheet sprayed with non-stick cooking spray or lined with parchment paper or a silicon baking mat.
Spoon 2 tablespoons of the chocolate chips into the center of each biscuit. Fold the biscuits over in half and crimp the edges together with a fork.
Bake for 14 to 17 minutes or until golden brown.
Make the glaze by mixing the melted butter, powdered sugar, vanilla extract, and milk together in a small bowl.
Once the turnovers are done, remove them from the pan and allow them to cool for about 5 minutes, then drizzle them with the glaze.