Preheat the oven to 325°F (160°C).
In a medium bowl, mix the graham cracker crumbs and melted butter until combined.
Press about 1 tablespoon of the crumb mixture into the bottom of each mini cheesecake pan. Bake for 5 minutes and let cool.
In a large bowl, beat the softened cream cheese and sugar until smooth and creamy.
Add the eggs, one at a time, blending well after each addition. Then mix in the vanilla extract and Andes Mint chips.
Pour the cream cheese mixture evenly over the cooled crusts, filling each cup about ¾ full.
Bake for 18-20 minutes until the centers are slightly jiggly but not liquidy. Turn off the oven and crack the door, letting the cheesecakes cool for 30 minutes.
Transfer the cheesecakes to a wire rack to cool completely, then refrigerate for at least 4 hours or overnight.
For the ganache, heat the heavy cream in a small saucepan over medium heat until just simmering.
Pour the hot cream over the chopped chocolate in a heatproof bowl and stir until smooth.
Let the ganache cool slightly before pouring it over the chilled cheesecakes. Garnish with additional Andes Mint chips if desired.