In an 8-ounce glass Mason jar, spoon in the creamy pumpkin puree and sprinkle in the warm pumpkin pie spice. Add 1 teaspoon of pure maple syrup or honey to sweeten the mixture. Stir together until well combined.

Introduce the old-fashioned oats and chia seeds into the pumpkin mixture. Stir carefully to ensure they are evenly distributed.

Pour your choice of oat, soy, or nut-based milk into the jar. Mix thoroughly to incorporate all the dry ingredients.

Seal the jar tightly with its lid and place it in the refrigerator. Allow it to chill for at least 4 hours or ideally overnight.

Remove the jar from the fridge and stir. Top the creamy oats with roasted pecans and a sprinkle of pumpkin pie spice before serving.