01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper.
02 - Toss beetroot wedges with 1 tablespoon olive oil, salt, and pepper. Arrange on the prepared baking sheet and roast for 30–35 minutes, turning halfway, until tender and slightly caramelized.
03 - While the beets roast, rinse farro under cold water. In a medium pot, combine farro and water or broth. Bring to a boil, then reduce heat and simmer for 20–25 minutes, until farro is tender but still chewy. Drain any excess liquid.
04 - In a small bowl, whisk together remaining olive oil, balsamic vinegar, Dijon mustard, honey, salt, and pepper to make the dressing.
05 - In a large bowl, combine warm farro, roasted beets, arugula, and red onion. Drizzle with dressing and toss gently.
06 - Top with crumbled goat cheese and toasted walnuts. Serve warm or at room temperature.