Place the dry ingredients (flours, tapioca, baking powder and salt) in a bowl and mix with a fork.
Add the beaten egg, the olive oil and the water, mixing well. You should get a thick dough, so if it is too liquid, add a little more of one of the flours. If it is too thick, add another tablespoon or two of water.
In the lowest heat of your stopoven, heat a small skilled or frying pan lightly greased with olive oil.
Place the dough in the skillet, flattening it with your fingers. Decorate with the seeds (optional) and cover with a lid, allowing to cook for about 5 minutes.
Turn the bread, and cook for another 5 minutes covered .
Remove the bread from the pan. Allow to cool and it's ready.