Peel onions and garlic. Cut onions into slices, chop garlic. Clean, wash and slice the mushrooms
Heat the oil in a large pot. Sear the mushrooms in it, take them out. Sauté onions and garlic in frying fat. Cut the sausage into slices, fry briefly
Deglaze with tomatoes and 1/2 l water. Bring to the boil and stir in the stock. Season with pizza spice, sugar, salt and pepper. Simmer covered for about 20 minutes
Clean, wash and cut the spring onions into rings. Chop the pepperoni into small pieces. Add the mushrooms and spring onions to the soup about 5 minutes before the end of the cooking time. Season soup again