To a large bowl add farro, olive oil, lemon juice, garlic, salt and pepper; stir to combine. Add next 8 ingredients (tomatoes through feta); gently toss to combine. Garnish with fresh parsley if desired and serve.
Note that preparation time does not include cooking farro or allowing it to cool.
For a slightly simpler version of this salad, drizzle and toss it with Greek Salad Dressing instead.