Wash basil and shake dry, pluck leaves and cut into fine strips. Peel garlic and chop finely. Peel the skin from the sausages. Frying mixture, minced meat, tomato paste, 2⁄3 Knead basil and garlic. Season the mixture with salt and pepper and form about 18 balls. Heat 2 tablespoons of oil in a large frying pan. Brown the balls all around, put aside.
Peel and finely dice the onions. Heat 1 tablespoon of oil in a saucepan. Fry the onions and the remaining garlic. Add tomatoes and 600 ml water, bring to the boil. Season with salt, pepper and 1 pinch of sugar, simmer for about 5 minutes.
Preheat oven (electric cooker: 180 °C/circulating air: 160 °C/gas: see manufacturer). Stir the noodles into the tomato sauce (the noodles are then cooked in the sauce in the oven), pour everything into an ovenproof dish. Put meatballs on top. Cut the cheese into small pieces and spread it on top. Bake in a hot oven for 25-30 minutes. Sprinkle with rest of basil.