Place the tortelloni in boiling salted water and cook according to the instructions on the packet. Drain and allow to cool.
Wash and halve the cherry tomatoes. Clean and wash the arugula and zucchini. Shake rocket dry and pluck if necessary a little smaller, cut zucchini into slices.
Roast the seeds without fat in a large pan. Remove. Heat 1 tablespoon of oil. Fry the zucchini in it until golden brown. Take out and let cool down. Season with salt.
For the dressing, peel and finely dice the onions. Wash the vine tomatoes. Grate on a coarse grater. Mix both with balsamic vinegar, salt, pepper and some sugar. Fold in 4 tablespoons of oil.
Halve the mozzarella and cut into thin slices. Mix carefully with all prepared salad ingredients and dressing. Leave to stand for at least 2 hours.
Cut the ham into thin strips and spread them on a large plate. Season tortellon salad again and arrange on top.