01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - Spread eggplant, red bell pepper, and red onion on the baking sheet. Drizzle with 1 tablespoon olive oil, season with salt and pepper, and toss to coat. Roast for 25–30 minutes, stirring halfway, until vegetables are golden and tender.
03 - Rinse farro under cold water. In a medium saucepan, bring 3 cups water or vegetable broth to a boil. Add farro, reduce heat, cover, and simmer for 20–25 minutes until tender but chewy. Drain any excess liquid.
04 - In a small bowl, whisk together remaining olive oil, lemon juice, oregano, minced garlic, salt, and pepper.
05 - In a large serving bowl, combine cooked farro, roasted vegetables, cherry tomatoes, and spinach. Pour dressing over and toss gently to combine.
06 - Top with crumbled feta, chopped parsley, and pine nuts if using. Serve warm or at room temperature.