Small plates are all the rage at the moment. Some of my favourite London restaurants are serving them and those restaurants have become extremely popular over the last year. Take Polpo as an example. The small Beak Street Venetian restaurant did so well that owner Russell Norman quickly opened a sister restaurant, Polpetto on Dean Street above the infamous a French House watering hole. This was followed by Spuntino, a scarily cool American diner set in downtown New York in the prohibition era. This week he is also due to open his fourth, no doubt fabulous restaurant in Covent Garden, Da Polpo. I can’t wait. So my Sunday dinner this week was mostly inspired by a few dishes that I have recently had at Polpo. Roast shoulder of Lamb with pearl barley and pan fried mushrooms, vine ripened and Golden Beauty plum tomatoes with marinated red onion, basil and radish and a simple plate of rosemary roast potatoes. For some reason, food seems more satisfying when sharing with your fellow diners and I much prefer …