Separate the butterhead leaves, rinse and dry. Divide between 4 serving plates and top with the peas, potatoes, nectarines and cucumber. Cut the ham into strips and divide between the plates.
For the mojo dressing, put all the ingredients in a food processor and blend until you have a spoonable dressing. Drizzle over the salad just before serving.
For top tips on protecting you and your family when preparing raw meat and poultry, visit Food Safety in the Home and view the full Food safety at home video.