Wash and sort the spinach and let it drain. Peel garlic and onion, dice finely. Drain the mozzarella and season with pepper. Cut in half lengthwise and wrap each piece with a slice of ham
Halve the bread pieces once crosswise and spread with the herb butter. Put the bread in a hot pan with the cut surface facing down. Roast at medium heat until golden brown. Turn the bread over and fry it briefly from the other side, take it out. Put 1 tablespoon of oil into the hot pan and fry the mozzarella parcels for 2-3 minutes
Heat 1 tablespoon of oil in a saucepan and sauté the onion and garlic. Add spinach and 2 tablespoons of water. Season with salt, pepper and nutmeg, cover and allow to fall together. Season to taste again. Arrange spinach with mozzarella and bread