It really depends what part of Spain you are going to...Costa del Sol has many english shops and what you cant find here you can pick up in Gib..Alicante areas too, rest of Spain you will not get, sausages, gravy powder, germaline, marmite (bovril yes)custard powder, pickle..BUT you will not hunger as the food in Spain is excelent quality..dont worry too much about things you are use too..if you intend to live here its better to adapt, you will also find a lot of family and friends come to visit so you can always get them to bring you things that you miss..