The day before: place can of coconut milk in fridge and banana slices in the freezer.
Remove can of coconut milk from fridge and open. Scoop out solid coconut milk from the top and put in a food processor or blender.
Add frozen bananas, maple syrup, pumpkin puree, and spices.
Blend until smooth.
Using a rubber spatula, spoon into a container such as a loaf pan. Mix in pecans and crushed graham crackers, reserving some for the top.
Top with remaining pecans and graham crackers. Place in the freezer to harden (about 3 hours). To serve, remove from freezer and let thaw 10-15 minutes until it's scoopable!
Video
Notes
Make sure to put the can of coconut milk in the fridge and banana slices in the freezer in advanced! Preferably the day before.