Peel and finely dice an onion and sauté in half the fat in a pot until translucent. Briefly sauté the rice and add chunky tomatoes. Let it swell for about 20 minutes at low heat.
Season to taste with salt, pepper and paprika and let it cool down a bit. Cut a lid off the peppers. Clean and wash the peppers. Add veal sausage meat to the rice and fill the pods with it.
Place the paprika lid on top and place the vegetables in an ovenproof dish. Cook in the preheated oven (electric cooker: 200 °C/ gas: level 3) for about 20 minutes. Clean and wash the mushrooms, remove the stalks. Cut mushrooms into slices.
Peel the remaining onion, dice finely and fry in a pan with the mushrooms in the remaining fat. Deglaze with cream and let it boil down a little. Stir in sauce thickener and season with salt and pepper.
Wash the herbs, chop finely and add to the sauce. Add the mushroom sauce to the peppers and serve immediately.