In a bowl, stir together the mashed banana (I'm allergic to raw bananas, so I'm leaving this out of mine!), almond milk, cinnamon and vanilla.
Add the oats, chia seeds, pineapple and pecans and stir together until evenly distributed. Sweeten to taste, if desired
Divide into two containers, cover and store in the refrigerator overnight
Before serving, stir in additional milk to achieve desired consistency. Garnish with additional pineapple if desired.