RE: How do you cook Lamb??
What cut of lamb are you looking to cook mate?
Chops - Grill them or fry them. If you want them rare grill for about 4 mins each side and let rest for 4 mins before eating. Well done 6-8 mins a side, smiliar times for frying.
If you are cooking a joint follow these guidelines. Rare: 20mins per 450g (1lb) +20 mins. Medium: 25mins per 450g (1lb) +25 mins. Well-done: 30mins per 450g (1lb)+30 mins
Let you meat rest for 10 mins minimum after you have cooked it before you carve it.
Hope this helps mate.