for Coop food supermarkets in Firenze go to http://www.coopfirenze.it/info/negozi/rete.htm on the left, clicking on Firenze you get a scroll-down menu with all the addresses and links to the relevant pages

If you can't locate a supermarket, go to http://tinyurl.com/tv32 and find the address you need to locate, then click on mappa interattiva and a pop-up map will open.

Both sites are in Italian only, but easy to navigate. Be advised some of the Coop stores will be little shops and not big supermarkets, so you better check first on the main site.

I also put on a search for rosticceria but got 50 listings; you can give it a look at http://tinyurl.com/tv34

Bye

Paolo Trieste, Italy