Instructions

1. Preheat oven to 375°F. Coat a 9×9 baking pan with non-stick spray. (If you do not have a 9×9 pan, you can use 9×13 but your casserole will obviously be thinner.)
2. In a large bowl, mix together the oats, sugar, baking powder, cinnamon, salt, and half the berries. In another large bowl, whisk together the milk, egg, butter, and vanilla extract.
3. Add you oat mixture to your baking dish. Arrange your bananas and remaining berries on top.
4. Now take your milk mixture and pour over the top of everything. Allow a few minutes for it to soak down into your oats.
5. Sprinkle a tablespoon of brown sugar on top and place in oven. Bake for 30-40 minutes, or until the top has turned golden brown.
6. Serve immediately. Store in an air-tight container (Ziploc bags work great) in the fridge. Take out leftovers as needed and microwave 1-3 minutes for a quick and easy breakfast.