In a mixing bowl, take rolled oats, milk, Greek yogurt, chia seeds, maple syrup, and half of the raspberries. Mash the raspberries before mixing them in.

Once combined, stir the mixture until it reaches a smooth consistency, ensuring all ingredients are well-integrated.

Transfer the mixture into mason jars or airtight containers, filling each jar to about three-quarters full.

Press the remaining whole raspberries on top of each jar for visual appeal and enhanced flavor.

Place the jars in the refrigerator and chill overnight or for at least four hours.

When ready to enjoy, take them out and consider garnishing with fresh mint or a sprinkle of coconut flakes before serving.