1. 1. Combine Dry Ingredients: In a jar or container with a lid, add the rolled oats, protein powder, chia seeds, and optional pinch of salt. Stir these dry ingredients together well to distribute the protein powder evenly.

2. 2. Add Wet Ingredients: Pour in the milk and add the Greek yogurt. If using, drizzle in the maple syrup or honey.

3. 3. Mix Thoroughly: Stir everything together very well. Use a spoon to scrape the bottom and sides of the jar to make sure no dry clumps of protein powder or oats are left behind. The mixture should look somewhat liquidy at this stage, but the chia seeds will absorb the liquid overnight.

4. 4. Secure and Chill: Place the lid securely on the jar or container.

5. 5. Refrigerate Overnight: Transfer the jar to the refrigerator and let it chill for at least 4 hours, but ideally overnight (8 hours or more). This allows the oats to soften, the chia seeds to swell and thicken the mixture, and the flavors to meld.

6. 6. Check Consistency and Serve: In the morning, open the jar and give the oats a quick stir. If they are too thick for your liking, add a splash more milk until you reach your desired consistency.

7. 7. Add Toppings and Enjoy: Top with your favorite additions and enjoy your protein-packed breakfast!