Cook farro according to the directions of the package. Usually it requires double volume of the water from the volume of farro and takes 15-20 minutes of cooking time. Run it under cold water to stop the cooking process and let cool completely. This step, obviously can be done in advance.
Quarter cherry tomatoes. Small plum tomatoes could work equally well.
In a large salad bowl mix farro grains with arugula leaves. Add tomato quarters.
Season with olive oil, balsamic vinegar and a few pinches of salt.
Add shaved Parmesan cheese before serving.
Notes
TIP 1: Toast Farro before cooking to reinforce the nutty flavor of the grains.TIP 2: You can substitute Farro for rice in cold rice salads.