Dice the ham. Peel and finely dice the onions. Drain fat in a pot, fry onions in it until transparent. Dust with flour, sweat and gradually add stock and cream, stirring constantly. Bring to the boil, season to taste with salt, pepper and sugar. Stir in ham
Clean and wash the zucchini, cut lengthwise into halves and cut into half slices. Prepare pasta in boiling salted water according to package instructions. Pour into a sieve, quench and drain well. In the meantime, heat the oil in a large pan and fry the courgettes in it, turning them over. Season with salt and pepper
Finely grate the cheese. Mix sauce, tortelloni and zucchini. Place in a greased baking dish, sprinkle with cheese and bake in a preheated oven (electric range: 200 °C/ convection oven: 175 °C/ gas: level 3) for 25-30 minutes. Remove from the oven and serve garnished with rocket