Gather all the ingredients for your Peanut Butter Banana Overnight Oats on a clean countertop.

In a bowl or jar, combine rolled oats, chia seeds, peanut butter, and your preferred milk. Mix until smooth.

Stir in honey or maple syrup, blending well to balance the flavors.

Slice a ripe banana and gently fold the pieces into the oat mixture.

Cover the bowl or jar and place it in the refrigerator overnight.

In the morning, stir well and add a splash of milk if too thick. Serve chilled.