Peel and finely chop the onion. Heat 1 tablespoon of olive oil in a saucepan. Fry the onion in it. Stir in bulgur, sweat briefly and add stock. Bring to the boil. Cover and pull aside and let it swell out.
Clean, wash and cut the peppers into pieces. Leek onions clean, wash and cut into rings. Heat the remaining oil in a large coated pan. Deglaze with vinegar. Sauté the bell peppers briefly in the vinegar.
Add spring onions. Season with tarragon, salt, pepper and sugar. Cover and stew for 12-15 minutes. Cut tomatoes and cheese into pieces. Mix all ingredients. Season again with salt and pepper.
Arrange the risotto on a plate. Garnish with tarragon.