Cook the pasta according to the instructions. In the meantime, cut the tomatoes, bell pepper, cucumber, mozzarella and shallots into small pieces. Drain the pasta and place in a bowl with the vegetables.
For the dressing in a small bowl, stir together oil, vinegar, grated Parmesan, possibly a little water and salt and pepper. Now mix the dressing with the salad. Finally refine with herbs such as basil and / or dill.