In a medium saucepan, combine the rolled oats, almond milk, pumpkin puree, maple syrup, pumpkin pie spice, vanilla extract, and salt.
Stir the mixture well to combine all the ingredients.
Heat the mixture over medium heat, stirring occasionally, for about 5 minutes, or until the oats are creamy and cooked through.
Remove from heat and let it cool slightly.
Once the oatmeal has cooled, divide it evenly into the four mason jars.
Optional: Add your choice of toppings such as chopped nuts, dried fruits, or a dollop of yogurt for extra flavor and texture.
Cover the jars and store them in the refrigerator for easy breakfasts throughout the week.
For a quicker version, you can prepare them in the microwave by combining all ingredients in a microwave-safe bowl and cooking for 2-3 minutes.