Combine chicken, ras el hanout and yogurt in a glass or ceramic bowl. Cover with plastic food wrap; chill for 15 minutes to marinate.
Preheat oven to 200°C (180°C fan-forced). Preheat a char-grill pan over moderately high heat. Cook chicken for 2 minutes each side or until browned. Transfer to a baking tray. Bake chicken for 10 minutes or until cooked. Remove from the oven. Cover with foil; rest for 5 minutes. Slice.
Meanwhile, combine kumara, chili, oil, and juice in a glass bowl. Char-grill kumara, in batches, for 2 minutes each side or until browned and tender. Transfer to a bowl.
Cook broad beans in a saucepan of boiling salted water for 2 minutes or until tender. Drain. Add beans and coriander to kumara in a bowl; toss to combine. Season to taste. Spoon kumara mixture onto a serving platter. Top with chicken and lemon wedges. Serve drizzled with pomegranate molasses.