The Slice Pizzeria located inside Harrah's Joliet Hotel & Casino in Joilet, IL. The Slice Pizzeria is fresh, hot, and made to order. This is a pizza lover’s paradise. Enjoy piping-hot pizzas by the slice or indulge in a 16-inch pie with all your favorite toppings. Made fresh daily, every delicious bite at The Slice Pizzeria is sure to please. Order an ice-cold beer for a classic combo that can’t be beat. The Slice Pizzeria offers customized individual slices (and whole pies) so you can have your pizza exactly the way you want it.