Clean, wash and chop the tomatoes and zucchini. Peel garlic and onions. Chop garlic finely. Chop the onions coarsely. Wash herbs and chop coarsely
Fry the onions and zucchini in hot oil for 3-4 minutes. Fry the tomatoes, garlic and herbs for about 2 minutes. Season with salt and pepper. Put into a large casserole dish
Wash the fish fillet, dab dry and cut into 4 pieces. Sprinkle with lemon juice. Season with salt and pepper. Place on the vegetables. Spread crème fraiche on top
Heat butter. Fry the breadcrumbs in it while stirring. Spread the crumbly butter over the fish. Bake in a hot oven (electric cooker: 200 °C/ convection oven: 175 °C/gas: level 3) for approx. 25 minutes. Delicious with baguette