Combine the oats, cinnamon and almond milk in a jar and stir ingredients together.
Mash half of the banana (leave the other half for garnish). Add the mashed banana and 2 teaspoons of the peanut butter to the oatmeal mixture and stir well to combine.
Place the oatmeal mixture in the refrigerator overnight (this will thicken and the oats will absorb the almond milk).
In the morning, in a different jar, layer the oatmeal with the granola to create the parfait (I used half of the granola as the bottom layer, the overnight oats as the middle layer and the remainder of the granola on top).
Slice the remainder of the banana and add on top of the parfait as a garnish.
Drizzle the remaining 1 tsp of peanut putter and honey on top and enjoy!