Cook your pasta according to the directions on the box.
In a large mixing bowl, combine the cooked pasta, pesto, and balsamic vinaigrette.
Once combined, add the halved cherry tomatoes and mozzarella balls and mix again.
Refrigerate for at least 30 minutes before eating. To save, store in airtight containers. Pasta salad will last in the fridge for 4-6 days.