When you've gone to all the trouble of choosing, glazing and carving a ham for Christmas, it seems criminal not to do anything with what's left after the big day. Rather than making endless rounds of ham sandwiches, Darren Robertson suggests a tasty zucchini salad with Christmas ham, macadamias, currants and parmesan - all things you're likely to find in your pantry after Christmas Day. No zucchini? Celery or potato will work, too. You can also substitute other dried fruit or nuts that you have on hand - the point is to use up your leftovers.