Cook rice in boiling salted water according to package instructions. Clean, wash and chop the peppers. Peel and chop onion. Cut cabanossi into slices. Heat oil in a pot, fry paprika and onion.
Add sauerkraut and marjoram. Season with pepper and paprika and stew covered for about 10 minutes. Add Cabanossi about 5 minutes before the end of the cooking time. Drain the rice and let it drain
Whisk eggs and sour cream. Season with salt and pepper. Cut bread into small cubes. Melt butter and brown bread cubes in it, take out. Mix rice with the sauerkraut, season to taste.
Spread the mixture into a greased casserole dish. Sprinkle bread over it and pour the egg cream over it. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for about 40 minutes. If necessary, cover after approx. 30 minutes. Garnish with marjoram