Heat a large non-stick frying pan on medium heat.
Add the protein powder, oats, banana and milk to a blender. Blend on medium setting until smooth.
Add the baking soda and lemon juice to the batter and give it a stir to incorporate.
When the pan is hot, spoon or pour the batter in to make three medium pancakes. If things tend to catch on your pan add a little butter or oil to prevent the pancakes from sticking.
Cook both sides for 1-2 minutes and repeat with the rest of the mixture. If the pancakes are getting too dark before they're ready just turn down the heat a little.
Serve with whatever toppings your heart desires!