You can take the same recipe and 50 people, not one will do the same. So I do it my way ...
Some people put bechamel and cream, I preferred to put that cream ..
Ingredientp> Spinach frozen or canned (I took both because I had a frozen stock)
Olive oil for the pan
40 cl cream (approximately)
4 or 5 eggs
Peeled and chopped the onion, fry it in a pan with a little of olive oil.
Add Frozen Spinach, if they are canned, drained well mixed.
Cook eggs hard and shell when cooked and cooled
Salt and pepper spinach and add the cream, mixed
Pour into a baking dish
Cup the eggs in half and put them on the spinach putting the yolks above
The recipes lightly in the spinach but not too much.
Sprinkle with gruyère grater and bake in preheated oven at 180 ° for 20 min