01 - Set oven to 400°F. Line a baking sheet with parchment paper.
02 - Toss apricot halves with 1 tablespoon olive oil, 1 teaspoon honey, and a pinch of salt. Arrange cut-side up on the prepared baking sheet and roast for 15 to 18 minutes or until golden and tender. Cool, then slice each half into thirds.
03 - Rinse farro thoroughly under cold water. Place farro, 2 1/2 cups water, and 1/2 teaspoon salt in a medium saucepan. Bring to a boil, reduce to a simmer, and cook uncovered for 25 to 30 minutes until tender and chewy. Drain excess water and let farro cool slightly.
04 - In a small bowl, whisk together 3 tablespoons extra virgin olive oil, 1 tablespoon white wine vinegar, 1 teaspoon Dijon mustard, 1 teaspoon honey, 1 tablespoon finely chopped rosemary, and a pinch of salt and black pepper.
05 - In a large mixing bowl, combine cooled farro, roasted apricots, baby arugula, thinly sliced red onion, and half the slivered almonds and crumbled feta. Drizzle with rosemary vinaigrette and toss gently to combine.
06 - Transfer salad to a serving platter. Garnish with remaining almonds and feta. Serve at room temperature or slightly chilled.