Clean, wash and drain the spinach. Peel and finely chop the onion. Heat the oil in a pot and fry the onion in it. Add the spinach and let it collapse. Season with salt, pepper and nutmeg.
Mix the dough, roll out oval and line a greased oval casserole dish (20x28 cm Ø) with it. Spread the spinach on the dough. Clean, wash and halve the tomatoes. Cut feta cheese into pieces.
Spread both on the spinach. Mix milk and eggs. Season with salt and pepper. Wash the herbs, dab dry, pluck the leaves from the stalk and chop finely. Stir into the egg-milk except for a little bit for sprinkling.
Pour over the vegetables and bake in the preheated oven (electric oven: 200 °C/ gas: level 3) for 25-30 minutes. Sprinkle with pine nuts about 15 minutes before the end of the cooking time. Serve sprinkled with other herbs.