Lightly whisk the eggs in a small bowl. Add the quark and lemon zest and mix well. Add the bicarbonate and ground almond, then gently combine. Add more quark if the mixture is too thick. Finally fold in the almond flakes.
Lightly grease a pancake pan and heat. When hot, add dollops of the mixture and using the base of the spoon flatten them slightly. After a couple of minutes flip them over and cook for another minute or so.
Transfer the pancakes to a plate and repeat with the remaining batter.
Serve warm or at room temperature.