Clean and quarter the Brussels sprouts, remove the dark green ends and roots of the leek and cut into rings.
Peel the carrots and onions, chop them into small cubes and sauté in hot oil. Add the rest of the vegetables. Deglaze with the broth and apple juice, season with salt, pepper and nutmeg
Preheat the oven to 200 degrees top / bottom heat.
Separate the eggs, beat the egg whites until stiff. Put the egg yolks under the steamed vegetables. Mix everything loosely with the egg whites and bake in a greased casserole dish for about 35 minutes. After about half the baking time, cover with aluminum foil so that the surface does not burn.