Line an 8"x8" baking pan with parchment paper.
For crust: Pulse oats, pumpkin seeds, coconut, cinnamon & salt in processor until finely ground. Add dates and process until well combined and sticky.
The mixture may look crumbly, but should hold together when pinched. If necessary, add more dates. Press dough firmly & evenly into pan. Place the pan in the freezer while you prepare the filling.
For filling: Combine pumpkin puree, maple syrup, coconut oil, vanilla, salt, and spices in food processor. Blend to smooth.
Add coconut flour and blend to combine. Adjust sweetener as desired.
Remove pan from freezer and pour filling on top, spreading it out evenly. Cover and refrigerate for at least 6 hours or overnight.
Lift the bars out of the pan using the parchment paper edges. Use a chef's knife to cut the bars, wiping the knife clean between cuts. Serve chilled.