technically it wouldn't be mutton,mutton is specifically a female sheep that is 3 years or older (lamb would be a younger sheep typically in its first year at time of butcher). However, I would imagine you could make it any way you would do lamb. The majority of the lamb I cook is the leg. No idea if it is similar, but if you look up lamb leg recipes you will be able to find a roast leg of lamb that would suit your tastes (tons of different ways to do it). I know this isn't specific but I hope it helps. Also, you could make an irish lamb stew with some of the other parts (or even the leg, but no sense in wasting a good roasting leg on this). This is absolutely delicious and I make it at least once a year on st. patty's day (look for a recipe that uses a base from the bone and some of the other parts, beer preferably guinness or smithwicks, fresh tyme, a little bit of clove and allspice, red potatoes, carrots, leek,little garlic). PM me sometime and I could give you the exact recipe, just don't have it at the moment. This should cut down the gamey taste quite a bit as well if there is any.