Mash bananas in medium mixing bowl; mix in yogurt, eggs, milk, canola oil, vanilla, and doTERRA On Guard.

In large mixing bowl add oatmeal, flour, brown sugar, baking powder, salt, cinnamon, and walnuts; mix well.

Add banana mixture to dry ingredients and mix. Do not over mix.

Spray griddle with non-stick spray, use small ladle to scoop out mixture to griddle. Cook on medium to high heat. Cook as you would regular pancakes, waiting for bubbles to appear then flip.