Combine the yogurt, oats, chia seeds, milk and honey together. Mix well.
Spoon 1 tablespoon of chocolate sauce in the bottom of each jar.
Spoon 1/2 of the mixture into the bottom of 2 mason half pint jars.
Let rest in the refrigerator overnight?.
In the morning, spoon the cut bananas on top of the oat mixture in each jar.
If there is extra space, fill with some extra milk, a tsp of chocolate sauce and a tablespoon of walnuts in each jar.