Spain
From Trashwiki
Spain has a general reputation of being a wonderful country for dumpster diving. There is a lot of tourism on the coasts, too, which makes dumpster diving exciting for those who get stuck in one of those areas.
There are many food markets which will provide you with great food at closing hours. You can also try asking in smaller grocery shops - owners/employees often are happy to give you the remains of the day and would even suggest you to pop in more often.
It's a bit harder to find a good food diving in containers of chain supermarkets in Spain. You can try these for skipping your food: Caprabo, Carrefour, Dia, Lidl, Mercadona, Veritas (organic food).

