The food in French supermarkets is fantastic!
Cheese, wine and local produce (depending on where you are) is all fantastic.
Brittany, you get great milks, creams, cheeses and apple based foods and drinks: apple pies, crumbles, tarts, ciders and Calvados. Food wise, it's a lot like Cornwall, which I am reliably informed, was once joined together with Brittany and Normandy.
I made up a silly song after seeing a massive display of cooked prawns in several Super and Hyper U (pronounced "Eeepair Oooo") shops.
"I am a prawn, I am pink.
And I am sitting in a supermarket looking at you!"
Edit: I hasten to add this song was to entertain the kids, although Mrs Secure thinks otherwise...