Bring 4 cups salted water to a boil and stir in farro. Reduce heat to a simmer and cook farro until just tender, about 20 minutes. Drain and spread out on a rimmed baking sheet to cool and dry a bit, about 5 minutes.
Whisk oil, lemon juice and zest, pepper, and parsley together in a medium bowl. Stir in feta, olives, and cooked farro.
*Find at well-stocked grocery stores or order online from bluebirdgrainfarms.com
Note: Nutritional analysis is per serving.