In a bowl, mix together the oats, milk, maple syrup, pumpkin puree, vanilla extract, and pumpkin spice until well combined.
Transfer the mixture into an airtight container or covered bowl and refrigerate overnight to allow it to soak and thicken. If you're short on time, a minimum of 3 to 4 hours will do.
The next morning, sprinkle a bit more pumpkin spice on top for an extra burst of flavor. You can also add some optional chopped pecans and a dollop of whipped cream for an extra treat.
Enjoy your pumpkin pie-inspired breakfast that's both delicious and nutritious!