Preheat oven (electric cooker: 175 °C/circulating air: 150 °C/gas: see manufacturer). Wash the tomatoes for the baked peppers. Clean and wash the peppers. Cut vegetables into large pieces. Peel garlic. Cut 2 cloves into thin slices.
Mix these with vegetables and 5 tablespoons of oil, season with salt and pepper. Place on a baking tray and roast in a hot oven without turning for 45-50 minutes until golden brown.
Meanwhile, for the crust, put the grissini in a freezer bag, close the bag and crumble the grissini with a rolling pin. Finely chop the remaining garlic clove. Wash parsley, shake dry and chop finely.
Mix everything with butter. Season with salt and pepper.
Rinse fish fillets, dab dry and season with salt. Spread the crust mix over each piece 1⁄4 and press it on. Heat 3 tablespoons of oil in an ovenproof pan. Sauté the fish on the meat side.
Place the pan with the fish on a rack over the baked peppers approx. 10 minutes before the end of the roasting time and finish roasting. Serve with vegetables. Serve with grissini or baguette.