Make brownies according to package directions. Let cool
completely in pan. Top with strawberries, cap side down.
Make ganache- Place chocolate chips in a medium, heatproof bowl
and set aside. Heat heavy cream in a small saucepan over medium
heat. When bubbles began to break the surface around the edges
of the pan, turn off the heat. Pour the hot cream over the
chocolate chips. Let sit for 5 minutes, then whisk constantly until
the sauce is smooth. Pour over the strawberry layer.
Refrigerate brownies until the ganache is set, about 15 minutes.
Cut into squares and serve cold.