Wash the spinach thoroughly, remove the excess water and chop it. Let's put finely chopped onion and 1 teaspoon of salt on it and rub it together. Let's take the excess water that accumulates on the bottom after rubbing, add Muratbey Plus Cheesoft, 1 teaspoon of red pepper powder and 1 teaspoon of black pepper and mix well. Put eggs, yoghurt, oil, a bit salt and mineral water in a mixing bowl and whisk well. Let's divide each of the phyllo dough into four pieces and get a total of 12 triangular pieces. Let's lay each triangular phyllo on a hard surface. Then  spread the sauce on them. Let's take a tangerine-sized amount of spinach paste and place it in a long row on the wide edge of the dough. Let's start from the place where the filling of the dough is put and wrap it in a roll. Then let's turn it around and give it a rose shape. Then place it neatly in an oiled rectangular ovenware. Let's apply the same process to all phyllo dough, and finally, pour all the remaining sauce on it. Bake them in a preheated oven at 180 degrees for about 35-40 minutes until golden brown..Bon appetit.