01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - In a large bowl, toss cauliflower florets with olive oil, cumin, smoked paprika, garlic powder, salt, and black pepper. Spread evenly on the prepared baking sheet.
03 - Roast cauliflower for 25-30 minutes, stirring halfway, until golden and tender.
04 - While cauliflower roasts, combine farro, water, and salt in a medium saucepan. Bring to a boil, reduce heat, cover, and simmer for 25-30 minutes until tender. Drain excess water if necessary.
05 - In a small bowl, whisk together tahini, lemon juice, olive oil, minced garlic, salt, and pepper. Add water gradually until the dressing is smooth and pourable.
06 - Divide cooked farro among four bowls. Top each with roasted cauliflower, cherry tomatoes, cucumber, red onion, olives, and parsley. Drizzle with tahini dressing and sprinkle with feta cheese if using.
07 - Serve immediately, or refrigerate components separately for meal prep.