What to do with leftover roast lamb If you have any leftover lamb, don't let it go to waste. Use it in a sandwich or try something new and transform into one of these delicious dishes. Using leftover roast lamb There are a plethora of dishes that can be made form leftover lamb: from curries to patties, stews to soups. In fact, there are so many different dishes that it is well worth buying a larger joint than you need, allowing the leftovers can be transformed into another dish. If you can, keep the meat on the bone to ensure it's moist and carve it just before using. The best cut to use is the leg as it is less fatty. However, the shoulder meat can also easily be used if it's trimmed of excess fat first. Leftover lamb recipes You can adjust almost any recipe to use leftover lamb. Simply switch raw lamb for the cooked, and skip any steps that precook the meat. Here are a few recipes that are specifically designed to use up your leftover roast lamb.