Mix eggs, milk, flour and salt to a smooth pancake batter. Cover and let it swell for about 20 minutes. Sort the spinach, wash thoroughly and drain. Peel garlic and onion.
Finely dice onion, press garlic through a garlic press. Heat 10 g fat in a pot. Sauté onion and garlic in it, add spinach and let it collapse. Season with salt, pepper and nutmeg and steam for 2-3 minutes.
Wash the tomato, dab dry, cut in half and remove seeds. Cut tomato halves into cubes. Grate ricotta roughly. Heat the remaining fat in a pan and bake 2 large pancakes one after the other. Warm up the hollandaise sauce.
Spread the spinach and ricotta on the pancakes and pour some sauce over them. Fold the pancakes over, cover with the remaining sauce and sprinkle with diced tomatoes. Serve immediately garnished with parsley.