In container with a lid or individual mason jars, combine milk, greek yogurt, maple syrup, and peanut butter. Whisk together until well combined. Add the vanilla extract and combine.

Add in the oats and ground flax seed and combine until all the oats are immersed in milk. If you prefer your oats to be have more liquid versus remain chunky, add ¼ cup more milk. You may also add more milk after the oats have been soaked overnight.

Close lid and store in the fridge for at least 4 hours, overnight is preferred!

Eat cold after the oats have been soaked. Get creative and add your choice of toppings to make it like your own breakfast sundae!