Roast pine nuts in a pan without fat until golden brown. Take them out and let them cool down. Grate cheese. Wash the rosemary and dab dry. Remove the needles from 2 twigs and chop finely. Peel garlic and chop finely. Mix pine nuts, parmesan, chopped rosemary and 2⁄3 garlic.
Rinse the peppers in a sieve and let them drain. Dab roulade meat dry and season with salt and pepper. Lay the bell peppers flat on the roulades, leaving 5-6 cm free at one end. Spread the pine nut mixture on top. Roll up the roulades firmly, folding the long sides inwards by approx. 1⁄2 cm. Fix the roulades with wooden skewers.
Peel and chop the onions. Heat the oil in a large frying pan. Sauté the roulades in it for 5-8 minutes. Remove the roulades. Preheat oven (electric cooker: 180 °C/circulating air: 160 °C/gas: see manufacturer).
Fry the onions, remaining garlic, 3 rosemary sprigs and 1 tablespoon of sugar in the frying fat for about 2 minutes. Sweat tomato paste briefly. Deglaze with red wine, bring to the boil and simmer for about 5 minutes. Add whole tomatoes, crush peeled tomatoes a little bit. Bring everything to the boil, season with salt and pepper. Put the roulades in the sauce. Cover and braise in a hot oven for about 1 3⁄4 hours. Season the tomato sauce to taste. Add ciabatta and a green salad to taste.