Whisk together the almond flour, cocoa powder, and sweetener. Pour the melted butter and mix together to form the crust dough. Spread evenly into pie pan, along the bottom and up the sides. Bake at 350 degrees Fahrenheit for 10 minutes then place in the freezer.
Meanwhile, mix together the butter, peanut butter, cream cheese, sweetener, and vanilla. In another bowl whip the heavy cream to stiff peaks, then fold it into the peanut butter mixture until completely combined. Pour into prepared crust, even it out with a spatula, and return to the freezer.
For the ganache topping, place the chocolate, sweetener, and peanut butter in a medium-sized bowl. Heat the heavy cream on the stove until it just simmers but doesn't boil, then pour it over the chocolate. Let it all sit together for 5 minutes, and then whisk until it melts together completely and comes together as a ganache. Pour over the top of the pie and refrigerate at least an hour or until ready to serve.