Put deep-frozen potato pancakes, without fat, on a baking tray and bake in a preheated oven (electric oven: 225 ° C/ gas: level 3) for 20-25 minutes until golden brown. Turn over after about 10 minutes.
In the meantime clean and wash the spring onions and cut them into fine rings. Wash and chop the tomatoes. Heat the oil in a pan and fry the minced meat thoroughly. Season with salt, paprika and cayenne pepper.
Add half of the spring onions and tomatoes and braise for about 5 minutes. Peel the garlic and press it through a garlic press. Wash the lemon thoroughly and finely grate half of the peel.
Halve the lemon and squeeze one half. Mix yoghurt, crème fraîche, garlic, lemon peel and 1 tablespoon lemon juice. Season with salt and pepper and fold in remaining spring onions.
Season the minced meat mixture to taste again. Spread 4 potato pancakes on plates and add the mincing mixture. Cover with remaining potato pancakes and add yoghurt sauce. Serve garnished with a salad leaf if you like.