In a large mixing bowl, combine the oats, unsweetened almond milk, peanut butter, vanilla protein powder, chopped banana, honey, salt, and vanilla extract. Mix until the oats are well coated with the wet ingredients.

Scrape down the sides of the bowl and give the mixture a good stir.

Spoon the mixture into individual mason jars or a large airtight container. Cover the jar or container with a lid.

Refrigerate for 4-6 hours or overnight (at least 8 hours). The oats will soak up the liquid and become creamy and delicious.

Serve chilled, topped with your choice of chopped nuts, seeds, or fruit.