Preheat the oven to 375 degrees and grease a 9x13 baking dish.
Add the oats, ground flaxseed, cinnamon and baking powder to a large bowl and mix well. Evenly distribute the oat mixture into the baking dish and set aside.
Add the pumpkin, honey, vanilla extract, milk and egg to a high powered blender. Blend until smooth. Pour the pumpkin mixture over the oats and gently stir. Add the sliced bananas on top.
Place in oven for 45 minutes or until the top is golden brown.
Enjoy!
Recipe by Kiss by Brooke at https://www.kissbybrooke.com/2018/09/26/pumpkin-and-banana-flaxseed-oatmeal-casserole/