Creating Mixed Berry Overnight Oats is simple when you follow these clear steps:

1. Combine Dry Ingredients: In a medium bowl, mix the rolled oats and milk until well combined.
2. Add Yogurt: Incorporate Greek yogurt into the mixture and stir to combine.
3. Sweeten It: Add honey or maple syrup for sweetness, adjusting to your taste preference.
4. Flavor It: Pour in the vanilla extract and mix thoroughly.
5. Fold in Berries: Gently fold the mixed berries into the oat mixture, reserving some for topping.
6. Jar It Up: Divide the mixture into serving jars or containers.
7. Chill: Cover the jars and place them in the refrigerator to chill for at least 4 hours or overnight.
8. Serve: When ready to eat, stir and add any optional toppings like nuts or additional berries on top.

By following these simple steps, you’ll have a nutritious breakfast waiting for you!