Drizzle the fish fillets with lemon, season with salt and pepper. Scald, peel, core and dice the tomatoes. Crush the clove of garlic.
Heat the oil in a pan, sauté the garlic and tomatoes, stir in the herbs and tomato paste and season with salt, pepper and sugar.
Put the fish fillets in a baking dish. Cover with the tomatoes. Mix breadcrumbs with cheese and sour cream and pour over the tomatoes. Cook in a preheated oven at 200 ° C (gas: level 3) for 35-40 minutes.
This goes well with rice and a colorful leafy salad.