How to make
The yolks and whites are separated. Chop the spinach and grate the mozzarella.
Add the cream cheese to the yolks and beat well. The spinach, mozzarella and baking powder are added to this mixture and it is mixed with a spatula.
Beat the egg whites nicely. They are added gradually to the other mixture and mixed carefully with a spatula. A very fluffy mixture is obtained.
The mixture is poured into a tray covered with baking paper. In this case, I used a silicone cake mold, which I greased with butter.
Bake the spinach omelette in a preheated oven at 360°F (180°C). For the time, you will have to judge according to your oven. Mine is gas and it cooks quite differently. Bake for about 30 minutes. But for some ovens, this time is a lot.
Leave the Oven-Baked Spinach Omelette cool completely and then take it out. It's even better to leave it to cool with the oven door open. After it has cooled, it is normal for the homemade omelette to shrink a little.