Select the salad, wash and drain well. For the vinaigrette, mix vinegar, salt and pepper. Fold in the oil.
For the salsa, remove the seeds from the papaya with a tablespoon. Peel the papaya and dice the flesh very finely. Dice Parma ham just as finely. Peel and finely chop the shallot. Mix the papaya, Parma ham, shallot and half the vinaigrette.
Mix the rest of the vinaigrette with the salad and divide between two plates. Halve the mozzarella and place on top. Add the papaya salsa.