In a small bowl; whisk together the milk and lemon juice.  Note you can skip this step and use plain milk if desired.

Allow to sit for around 5 minutes.

 Grease the bottom and sides of a half sheet pan with cooking spray or line the bottom with parchment paper.   

Blend together the oatmeal, baking soda and salt until ground.

Add the bananas honey, milk mixture, vanilla and eggs to the blender. Blend until smooth and combined; you may need to lightly stir to incorporate the dry ingredients from the bottom.

Pour the batter into the prepared baking sheet and evenly spread.

Place the desired toppings evenly over the top of the batter.  Note that fruit jam or heated peanut butter are great for swirling before adding chocolate chips or berries.

Bake for around 20 minutes or until the top is lightly golden brown.

Slice and serve with preferred toppings including maple syrup, vanilla Greek Yogurt or Granola.