Add the chia seeds and stir well with a spoon until evenly combined.
Finely chop one banana and fold it into the yogurt, oat, and chia mixture.
Slice the second banana and arrange the slices on top to decorate. Cover the pudding with plastic wrap and refrigerate overnight, then enjoy it cold for breakfast.
Notes
You can use plain kefir or drinkable yogurt; choose unsweetened for a no‑added‑sugar breakfast.
If you prefer a thicker texture, add an extra teaspoon of chia seeds or a spoonful of Greek yogurt.
For more protein, replace part of the drinkable yogurt with thick Greek yogurt.
Add a pinch of cinnamon or vanilla extract for extra flavor without extra sugar.
This pudding keeps well in the fridge for up to 2 days; stir gently before serving if it separates.
For a dairy‑free version, swap the drinkable yogurt with a plant‑based yogurt drink and check that it is fortified.