I am looking for the top 10 Organic Cash Crops.
Like Strawberries and Raspberries, I understand are very good.
Potatoes and carrot are not as good.   I would like it for 
Europe but if not any single country in the Euro Zone

You should probably clarify what you mean by top 10. One would assume
you mean top 10 as measured by total economic output. But then you go
on to say that strawberries are good but potatoes are not. This leads
me to believe you are asking for an entirely subjective answer about
the quality of the crops. What do you mean?

Some sites that may be of help:
http://www.organic-europe.net/europe_eu/statistics.asp

http://europa.eu.int/comm/agriculture/qual/organic/index_en.htm
though the data from this site won't be up for a couple of days