O Sabata in City of London, Westminster

came in here as we had just been to the National Portrait Gallery and wanted somewhere quick to eat. Quick was hardly the word. After a 30 mins wait for just a sandwich and soup we were almost ready to leave but the food arrived. How difficult can it be to put a light under the soup to heat up whilst preparing the order before ours? Apparently there was only one member of staff in the kitchen - skeleton staff. There could have been skeleton customers as well. Sorry, but at nearly £20 this should have been executed with speed and efficiency.