Preheat oven to 350F.
In a food processor, blend together graham crackers, butter, coconut sugar, and pumpkin pie spice until finely ground, scraping the sides down as needed.
Press firmly into the bottom and sides of a pie dish. Bake for 13-15 minutes or until fragrant and more golden. Let cool to room temperature.
Using a clean food process or hand mixer, blend together cream cheese, pumpkin, and greek yogurt. Add in coconut sugar, eggs, vanilla, and spices.
Pour into slightly cooled pie crust and bake for 60 minutes.
Turn off oven and leave pie inside, with door slightly open for another 40 minutes.
Place in fridge to cool for at least 4 hours or overnight.
Cut and serve with whipped topping!