Boil the rigatoni in salted water. Fry the minced meat, onion and cloves of garlic, deglaze with the tomatoes and season with enough salt, pepper, sugar and oregano. Make a sauce from creme fraîche, cream and processed cheese (mix everything together) and season with nutmeg.
Alternating a layer of meat sauce - noodles - grated cheese - noodles - meat sauce - grated cheese - noodles - then put the light sauce and finally grated cheese again in a baking dish and bake in a preheated oven at 180 - 200 ° for about 15 minutes until the Cheese has melted.