Add all the ingredients to food processor and process until well combined.
Transfer to a removable bottom deep pie dish and press to the bottom and sides of the pan to form a crust.
Bake in the oven for 10 minutes or until golden.
Set aside
Lower oven temperature to 350F
For the filling
Add all the ingredients to the bowl of your food processor and process until smooth and creamy, about one minute.
Transfer to the reserved pie crust.
Bake in 350F oven for 50-55 minutes, until filling is set.
Turn off the oven and open the door slightly. Allow pie to cool for a couple of hours, then take it out of the oven and let it cool completely before to transfer to the refrigerator, where you will leave it to cool for at least 4 hours, preferably overnight.
For the crumble
Preheat a small pan over medium high heat. Add the oats, pecans, salt and cinnamon and toast until fragrant and the oats start to turn brown.
Add raisins and maple syrup. Stir until well combined.