I don't know if you know the friar's beard. In Italy it is known as aggretti and it can be consumed both raw and sautéed.
To make today's recipe, first we are going to sauté to later join them to the potatoes (previously cooked and browned in the pan) and to the egg. We will thus obtain an original and delicious potato omelette.
Below you can see the photos of the step by step and also the appearance of this raw ingredient.
I leave you the link to another of my favorite potato tortillas, in this case, with pickled mussels.
Potato omelette with agretti
Delicious potato omelette with a special ingredient: agretti
More information - Spanish omelette with pickled mussels