Whisk ricotta cheese and milk to form a smooth cream. Add the eggs and whisk until incorporated.
Combine flour, yeast and a pinch of salt, add them to the ricotta and eggs mixture and whisk gently to get a homogeneous batter. Add the parsley, if using, then set aside.
Heat a non-stick frying pan with a little olive oil. Add ΒΌ cupfuls of pancake batter and cook until bubbly on top and golden on the bottom.
Turn the pancakes and cook one minute more. As they are done, stack them on a plate so they will keep warm while you go on cooking.
Note
These healthy protein pancakes are great as a sweet, too; just omit parsley and try them for breakfast or afternoon treat served with maple syrup, fresh fruit, jam or hazelnut spread.