Place all ingredients in a container and stir until well combined. Seal with a lid and place in the fridge overnight (or at least a couple hours).
Bring out of the fridge in the morning and stir. You'll notice that the oats soak up a lot of the liquid so you may want to add a little more almond milk before serving. Top oats with additional chopped strawberries and serve.
Overnight oats will keep for up to 5 days in the fridge in a sealed container.