01 - Preheat oven to 425°F and line a baking sheet with parchment paper.
02 - Toss zucchini, cherry tomatoes, and red onion with 2 tbsp olive oil, ¼ tsp salt, and ¼ tsp black pepper. Spread in a single layer on the prepared baking sheet.
03 - Roast vegetables for 20–25 minutes, stirring once, until zucchini is golden and tomatoes are blistered.
04 - Bring 2 ½ cups water or broth and ½ tsp salt to a boil in a medium saucepan. Add rinsed farro, reduce heat, cover, and simmer for 20–25 minutes until tender but still chewy. Drain any excess liquid.
05 - Whisk together 3 tbsp olive oil, lemon juice, minced garlic, oregano, ¼ tsp salt, and ¼ tsp pepper in a small bowl.
06 - Combine cooked farro, roasted vegetables, olives, parsley, and mint in a large bowl. Drizzle with dressing and toss gently to combine.
07 - Divide between bowls and top with crumbled feta cheese. Serve warm or at room temperature.