Add rolled oats, yogurt, milk, chia seeds, strawberries, strawberry puree, honey, and vanilla extract to a medium-size mixing bowl and mix everything well.
Cover the bowl with a lid and refrigerate for 6-8 hours or overnight. If you are in a hurry, you can soak the oats for a minimum of 2-3 hours. They will not be as soft though. Add more milk if the oats are too thick and mix well. Top with your favorite toppings and serve.