Whisk egg. Add flour, oats, yogurt, and milk. Whisk well.
Heat up oil in a frying pan so that the pancakes won’t stick. Spoon pancake batter into the pan, using a tablespoon for each one. Add a teaspoon of Nutella on top of each pancake, then cover with another tablespoon of pancake batter. Flip after approx. 3 – 4 min. when golden. Serve warm.