Combine milk, Greek yogurt, honey, cinnamon, and vanilla extract in a container or jar with a lid.
Add oats and mix well.
Gently fold in raspberries.
Cover and refrigerate 8 hours to overnight.
Enjoy cold or heat as desired.
- Frozen blueberries or strawberries may be used in place of raspberries.
- Regular yogurt may be used in place of Greek yogurt.