Valencia has plenty cafes and bars that also serve a selection of foods that extends beyond peanuts and crisps.  Although tradition dictates that lunch is a lengthly affair, worthy of taking a few hours over and to be spent in a restaurant or (ideally) to go back home to eat... followed by a brief rest, modern lifestyles and work schedules often make this unrealistic. Cafes are a good alternative to the many sandwich franchises.