While this seems like a tasty sandwich there are some major things wrong with this recipe. First, in chicago we never " shred " our beef it's always thinly sliced. Second, we would never put Italian dressing, mix or wet on our beefs ( that's a cardinal sin here). Third, never would you find anyplace in Chicago that puts peperoncini peppers on our beefs, only sweet peppers or giardiniera. While this seems like a good beef sandwich please don't call it chicago style.