I'm taking my family (wife and 11-year-old child) to London and am staying at one of the Thistle Hotels near Hyde Park south. I don't have a large food budget, but I don't want to eat unhealthy fast food either. Are there some reasonably priced (5 to 20 pounds per person) restaurants in that area that serve good food? I believe the hotel is close to High Street Kensington. I'm sorry I don't know the location any better.