A day ahead if possible mix the teriyaki marinade with the lemon juice. Coat the meat in the mixture and leave in the fridge overnight.
To cook, set the oven 180ºC (350ºF) Gas Mark 4.
Roast the meat for 50-60 minutes. It could also be finished for last 10-15 mins on the barbecue.
Mix the salad ingredients together in a large bowl. Combine the dressing ingredients in the food processor, check the seasoning. Mix half the dressing through the salad, set aside. Slice the pork very thinly and serve with the salad, remaining dressing and rice or potatoes. Any leftovers make a great sandwich filling in good bread.