01 - Preheat the oven to 400°F. Arrange halved figs cut-side up on a lined baking sheet. Roast for 12 to 15 minutes, until softened and caramelized. Allow to cool slightly.
02 - In a medium saucepan, combine farro, water, and salt. Bring to a boil over high heat. Reduce heat, cover, and simmer for 25 to 30 minutes or until tender. Drain any remaining water and cool.
03 - Segment oranges by removing peel and pith with a sharp knife. Cut between membranes to release segments over a bowl to catch any juice for the dressing.
04 - In a small bowl, whisk together extra-virgin olive oil, reserved orange juice, balsamic vinegar, honey, Dijon mustard, salt, and black pepper until fully emulsified.
05 - Combine cooled farro, salad greens, orange segments, sliced red onion, and half the chopped nuts in a large mixing bowl. Drizzle with dressing and toss gently to combine.
06 - Top the mixture with roasted figs, remaining nuts, and crumbled feta cheese if using. Serve immediately.