In a medium mixing bowl, whisk to combine milk, pumpkin puree, pumpkin pie spice, vanilla extract, and maple syrup.
Add chia seeds to the bowl and mix again to incorporate the seeds.
Cover the bowl with a tight-fitting lid and refrigerate for 4-5 hours or until the pudding is thickened.
Transfer the pudding to individual serving bowls and top with whipped cream, fresh fruits, chopped nuts, or a sprinkle of ground cinnamon. Serve chilled!