In a large bowl, add the chia seeds, hemp seeds, pumpkin puree, pumpkin pie spice, Greek yogurt, vanilla extract, honey, and milk. Whisk everything together and let it sit for 8–10 minutes.
In a small bowl, add the white chocolate chips and coconut oil. Microwave in 30-second intervals, stirring in between, until melted.
Stir the Greek yogurt into the melted white chocolate until everything is well combined.
Divide the pudding mixture between two glasses. Top each with the white chocolate-yogurt mixture and smooth it out.
Dust with cinnamon using a small sieve. Refrigerate overnight and enjoy the next morning!