Wash the peppers and cut off the lid. Core the paprika. If necessary, cut the bottom of the peppers to make them stand better. Peel the onions and cut them into fine cubes.
Wash the chervil, shake dry. Put some chervil aside for garnishing. Remove the coarse stems from the remaining chervil and chop finely. Knead the minced meat, onions and half of the breadcrumbs well, season with salt and pepper
Fill the peppers with minced meat. Heat 1 tablespoon of oil in a flat roasting pan or an ovenproof pan. Fry the bell peppers for about 3 minutes, turning them over. Pour on the stock and cook in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: see manufacturer) for approx. 45 minutes. After 30 minutes cooking time add the paprika lids.
Melt butter in a pan. Fry the remaining breadcrumbs in it until brown. Remove the bell peppers and arrange with lids. Add breadcrumbs and garnish with chervil.