Preheat oven to 220°C (425°F). Pat chickpeas completely dry.
Toss chickpeas with olive oil and spices. Spread in a single layer on a baking sheet.
Roast 22–25 minutes, shaking once halfway, until golden and crispy. Set aside uncovered.
Heat olive oil in a saucepan over medium heat. Cook garlic 1 minute.
Add rice, cumin, turmeric, and salt. Toast 1–2 minutes, stirring.
Add vegetable broth. Bring to a boil, then reduce to lowest heat. Cover and cook 15 minutes without lifting lid.
Remove from heat. Steam covered 5 more minutes. Fluff with a fork.
Stir fresh parsley, mint, and lemon zest through warm rice.
Combine cucumber, cherry tomatoes, red onion, lemon juice, olive oil, and parsley. Season and toss.
Whisk tahini, lemon juice, garlic, and olive oil. Add water gradually until smooth and pourable. Season.
Spoon herbed rice into each bowl as the base.
Add a large spoonful of hummus to one side.
Add cucumber tomato salad alongside.
Top with crispy chickpeas, kalamata olives, pickled red onion, and feta if using.
Drizzle lemon tahini dressing over everything.
Finish with fresh herbs, lemon squeeze, olive oil drizzle, flaky salt, and cracked pepper. Serve immediately.