In a small saucepan, add the coconut milk, coconut sugar, and agave. Place over medium heat and stir until the sugar dissolves.
Add the chocolate to the pan and reduce the heat to medium-low. Stir constantly. When the chocolate is fully melted, remove from the heat and whisk in the stevia and peppermint flavor.
Take the crust out of the fridge and pour in the chocolate filling. Cover and refrigerate overnight. Slice, serve, and enjoy!