Clean, wash and cut the peppers into thin strips. Clean the chilli, cut lengthwise, remove seeds, wash and chop finely. Peel, halve and chop the onion. Carve tomatoes crosswise and boil water over them.
Cold rinse and peel off the skin. Dice the tomatoes.
Prepare the pasta in 4 l boiling salted water (approx. 1 teaspoon salt per litre) according to the instructions on the packet.
Heat the oil in a frying pan. Brown the bell pepper, chilli and onion in it. Add the diced tomatoes and tomato paste, sauté briefly. Add orange juice and bring to the boil. Season with salt and pepper. Simmer covered for about 10 minutes.
Chop the parmesan into fine shavings. Drain the pasta and put it back into the pot. Mix in the sauce. Serve. Sprinkle with coarse pepper and parmesan.