Bring 2-3 l salted water (1 teaspoon salt per litre) to the boil. Wash, clean and chop the peppers. Peel and finely dice onion and garlic.
Cook the pasta in boiling salted water according to the instructions on the packet. Heat the oil in a large pan. Sauté the onion and garlic in it and fry the diced peppers briefly. Add tomato paste and sauté briefly. Add the tomatoes, 150 ml water and cream, stir in the herbs. Bring to the boil and simmer for 3-4 minutes. Season with salt, pepper, paprika powder and sugar. Stir in olives.
Preheat oven (electric cooker: 175 °C/circulating air: 150 °C/gas: see manufacturer). Drain the pasta, drain well and mix with the sauce. Pour into four ovenproof casseroles or a large form.
For the crumbles, grate the parmesan finely. Knead bread crumbs, parmesan and butter in pieces to form crumbles. Spread evenly on the casserole. Bake in a hot oven for about 25 minutes. Wash the marjoram, shake dry and remove the leaves. Remove the casserole from the oven and sprinkle with marjoram.