The celebrated chefs Mario Batali, Dario Cecchini, and Roberto Caporuscio are among those participating in the four-day La Cucina Italiana Food and Wine Festival in Las Vegas. Held from Thursday, December 5, through Sunday, December 8, at the Venetian and Palazzo hotels, the event will kick off with a carnivore’s feast for 100 guests ($250 per person), prepared by Cecchini and Wolfgang Puck. The dinner will include prime beef sliders, roasted-chestnut-and-truffle soup, wagyu-beef sashimi, and bistecca alla Fio…