Let the puff pastry thaw according to the instructions on the package. But also goes very well with fresh dough.
Peel the onion, cut into cubes and sauté in the melted butter or oil. Add the spinach and simmer over low heat. With salt, pepper, nutmeg who likes garlic.
Cut the sheep's cheese into small cubes. If you don't like sheep cheese, take mozzarella.
Separate the egg for brushing. Whisk the egg white and brush the edges of the puff pastry with it. Place a little spinach on top of the puff pastry with the sheep's cheese in the middle. Fold the dough sheets into triangles and press firmly with a fork.
Then place on a baking sheet lined with baking paper and brush with the egg yolk and milk whisked mixture. Bake the baking sheet in a preheated oven for 20 minutes at 200 ° C. You can also serve a mixed salad or, like me, as a snack with a good wine or beer 🙂