TIS,
"Taste of Chicago" is not an italian festival, but of course you can find there some excellent italian food like Chicago's famous Italian Beef sandwich.
There is an italian festival in Chicago called "Festa Pasta Vino" at Oakley Ave, I've yet to go there, but I heard it's good. Small tho, nowhere as big as "Taste of Chicago".
Thank you for finally adding a Neopolitan festival..........