In a jar or airtight container, combine the rolled oats, skim milk, Greek yogurt, chocolate protein powder, chia seeds, and peanut butter; stir until smooth and evenly combined.
Seal the container and refrigerate overnight (about 8 hours) to allow the oats to soften and thicken.
In the morning, stir the oats once, then top with the sliced banana, chopped peanuts, and mini chocolate chips; serve chilled.
Notes
Use a scoop size consistent with your protein powder label for best protein content.
Adjust milk amount for thicker or thinner texture.
Stir well before refrigerating to prevent clumps of protein powder.