Peel and chop the onions and garlic. Fry in hot oil. Sweat tomato paste with. Add the tomatoes, juice and 1 l water. Bring to the boil, stir in stock and oregano. Simmer covered for about 30 minutes.
Halve the mozzarella and salami. Clean, wash, quarter and cut the peppers into strips. Puree soup, season to taste. Add paprika, mozzarella and salami and heat everything. Wash oregano, pluck off leaves and sprinkle over.