01 - Combine farro, water, and 1/2 teaspoon salt in a medium saucepan. Bring to a boil, reduce heat to low, cover, and simmer for 25 to 30 minutes until farro is tender yet chewy. Drain any excess water and allow to cool slightly.
02 - While farro cooks, place diced cucumber, halved cherry tomatoes, finely diced red onion, sliced Kalamata olives, chopped parsley, and chopped mint into a large mixing bowl.
03 - Whisk together extra virgin olive oil, lemon juice, dried oregano, minced garlic, Dijon mustard, salt, and black pepper in a small bowl until well combined.
04 - Add the cooled farro to the bowl with vegetables and herbs. Pour the dressing over the mixture and toss gently to combine.
05 - Fold crumbled feta cheese into the salad. Taste and adjust seasoning as necessary.
06 - Serve the salad chilled or at room temperature, optionally garnished with extra herbs or feta.