In a pint size (16 oz) mason jar (or other air tight container that can hold at least 2 cups), combine the oats, almond milk, honey and vanilla extract. Close with the lid and shake to combine. Refrigerate for 8 hours, or up to 5 days.
When ready to eat, heat in the microwave for 2 minutes. Remember to remove the metal lid! Add in desired amount of almonds and blueberries.