Regarding Milan its rich with all kind of food resturants.
You can easily find the local information office located in the Central Train Station (Centro Statzione di Milano).
Beside that for the whole sale shopping Prix and Decathlon are super mart for wholesale.
For enjoy the churches and museums then Piazza Doumo di milano would be your destination. Where you can enjoy Galleria di Doumo and Doumo (main church of the city)