2.In a small bowl, combine rosemary, oil, honey, mustard and garlic. Rub into meat. Marinate, chilled, for 20 minutes (optional).
3.Preheat oven to hot, 200°C
4.Bake lamb for 10 minutes. Place potato, pumpkin and onion into same dish. Bake for a further 20 minutes. Add zucchini and tomatoes and bake for 10-15 minutes until lamb is cooked to taste.
5.Rest lamb, covered with foil, for 5 minutes. Serve sliced with vegetables.