Process all crust ingredients, except maple syrup, in a food processor until a sticky crumble is formed. Add maple syrup and process again to combine. Transfer the mixture into a 4" springform pan and press to form a crust along the base and a bit up the edges all around. Place the pan in the freezer while working on the next step.
Blend all filling ingredients in a power blender until completely smooth. Pour this mixture into the pan over the crust. Smooth out the top. Decorate with toppings.
Freeze for 5 hours or overnight. Thaw out a touch and enjoy! Keep leftovers frozen.