The sociologist Bob Ashley observed that while people in Britain might agree that the core national diet consisted of items such as the full English breakfast, roast beef with all the trimmings, tea with scones, and fish and chips, few had ever eaten the canonical English breakfast, lunch and dinner in any single day, and many probably never ate any item from the list at all regularly. In any case, Ashley noted, the national diet changes with time, and cookery books routinely include dishes of foreign origin. He remarked that a National Trust café, whose manager claimed "We're not allowed to do foreign food ... I can't do lasagne or anything like that", in fact served curry, because "seemingly curry is English". Anglo-Indian cuisine has indeed been part of the national diet since the eighteenth century.