This Banana Baked Oatmeal is perfect for meal prep, when you want an easy breakfast on the go! It's naturally gluten-free & vegan, and takes just a few minutes to assemble before it bakes to perfection.
Preheat the oven to 350ºF and grease an 8-inch square baking dish. In a large bowl, peel and mash the 3 ripe bananas until they look relatively smooth. Add in the milk and maple syrup, and stir well.
Add in the oats, flaxeed, cinnamon, baking powder, and salt, and stir again. Fold in the chopped walnuts, then transfer the mixture to the prepared baking dish. Sprinkle a few extra walnuts on top, if you'd like to.
Bake at 350ºF until the edges are golden and the top looks firm in the center, about 40 minutes. Remove from the oven and let it cool for at least 10 minutes before slicing and serving. The texture will be slightly gummy in the center while this is hot from the oven, but it firms up even more as it cools, so it's perfect for meal prep!
Serve warm with a drizzle of peanut butter on top, or with fresh berries. Leftovers can be stored in an airtight container in the fridge for up to 5 days.
Notes
Nutrition information is for 1 of 6 slices, using almond milk as the milk of choice. This information is automatically calculated, and is just an estimate, not a guarantee.For a nut-free recipe, omit the walnuts and use a nut-free milk. You can add in chocolate chips, instead!