Wash and sort the spinach and blanch briefly in boiling salted water. Drain. Clean, wash and slice the tomatoes. Peel garlic and press it through a garlic press. Separate the eggs. Stir curd, milk, semolina, parmesan and egg yolk until smooth. Season with salt, pepper, nutmeg and garlic.
Beat the egg white until stiff and fold in. Layer vegetables and quark mixture alternately in an ovenproof dish. Cook in the preheated oven (electric cooker: 225 ° C/ gas: level 4) for about 20 minutes. Cover if necessary. Roast the pine nuts in a pan without fat until golden brown. Sprinkle over the casserole before serving