01 - Preheat the oven to 425°F and line a baking sheet with parchment paper.
02 - Spread the green beans and red onion evenly on the prepared baking sheet. Drizzle with 1 tablespoon olive oil and sprinkle with a pinch of salt and pepper. Toss to coat evenly.
03 - Roast in the oven for 18-20 minutes, stirring once halfway through, until the green beans are tender and slightly caramelized.
04 - Rinse the farro under cold water. In a medium saucepan, combine farro, water or broth, and ½ tsp salt. Bring to a boil, then reduce heat and simmer covered for 20-25 minutes until grains are tender but still chewy. Drain any excess liquid.
05 - In a large bowl, whisk together the remaining olive oil, lemon juice, Dijon mustard, honey, minced garlic, salt, and black pepper until emulsified.
06 - Add the warm farro, roasted green beans, red onion, and cherry tomatoes to the bowl with the dressing. Toss gently to combine thoroughly.
07 - Transfer the salad to a serving platter or individual bowls. Sprinkle with feta cheese, toasted almonds, and chopped parsley. Serve warm or at room temperature.