01 - Place rolled oats, almond milk, Greek yogurt, chia seeds, and protein powder in a large mixing bowl or jar.
02 - Stir in maple syrup or honey and vanilla extract, mixing thoroughly until the mixture is smooth and homogeneous.
03 - Cover tightly and refrigerate for at least 8 hours or overnight, allowing oats and chia seeds to absorb liquid.
04 - In the morning, mix well to redistribute ingredients. Add additional milk if a creamier texture is desired.
05 - Top oats with fresh berries, chopped nuts, and nut butter as preferred. Serve chilled.