In a mixing bowl, combine rolled oats with milk.
Add the protein powder and stir until well mixed.
Incorporate chia seeds and mix thoroughly.
Add honey or maple syrup to sweeten.
Fold in Greek yogurt for creaminess.
Add a pinch of salt to enhance flavor.
Sprinkle cinnamon for extra taste, if desired.
Transfer the mixture to a jar or container.
Cover and refrigerate overnight (or for at least 4 hours).
In the morning, top with fresh fruits and nuts before serving.