Fans of iconic Chicago eats rejoice. The most raved about Windy City food collaboration of 2022 returns just in time for this holiday season. Lou Malnati’s – the Chicago pizza leader long celebrated for its buttery-crust deep dish – is reuniting with fellow Windy-City giant, Portillo’s – the famed and fast growing purveyor of unrivaled Chicago-style street food – to give fans and foodies nationwide another chance to savor the most iconic Chicago pizza ever created: the Lou Malnati’s x Portillo’s Italian Beef Deep Dish.