Fill a saucepan with water and bring it to a boil. Immerse the quail eggs and boil them for 4 minutes. Then, immediately cool them in cold water and peel them. At first, it might seem a little difficult because of their small size but it will become easier as you progress.
Cut the eggs in halves and remove the yolks with a teaspoon or by simply squeezing them. Put them in a bowl and add the Greek yogurt, salt, and pepper and mix everything until you obtain a smooth paste.
Put the paste in an icing ornamenting syringe and fill in the quail egg whites. If you don't have one of those, just use the same teaspoon you used to remove the yolks. I used the syringe to make the keto deviled quail eggs look prettier.
When you're done filling the whites with the deviled egg paste, finish off by garnishing with paprika. I suggest cooling them in the fridge for half an hour before serving. Enjoy!