Wash the peppers and cut 2 rings (each approx. 2 cm wide) from the middle. Clean and chop the remaining peppers. Peel and finely dice onion and garlic. Clean and wash the chilli pepper and cut it into fine rings.
Wash the shrimps and pat them dry. Heat the oil in a pan. Fry the prawns for approx. 3 minutes, turning them over and taking them out. Add the diced peppers, onion, garlic and chilli pepper to the pan and fry over medium heat while turning.
Season with salt, pepper and Worchester sauce. Add to the prawns. Melt the fat in a pot and sauté the flour in it. Add tomato paste and deglaze with the milk while stirring. Season with salt and pepper.
Place the rings in a small casserole dish. Fill with the pepper chili shrimps. Pour sauce over them. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for about 8 minutes.
Sprinkle with parsley and garnish.