Uno Chicago Grill, (formerly Pizzeria Uno) or more informally as Unos, is the title for a franchised pizzeria restaurant chain under the parent company Uno Restaurant Holdings Corporation. Ike Sewell opened the first Pizzeria Uno in 1943. The first Uno's was established in 1943 by former University of Texas football star Ike Sewell and his friend, former World War II G.I. Ric Riccardo, in the River North neighborhood of Chicago, Illinois. Sewell originally intended to open a Mexican restaurant because 'there wasn't a really decent Mexican restaurant in Chicago then.' While Sewell and Riccardo are known as the owners of the original restaurant, a 1956 article from the Chicago Daily News asserts that the original deep-dish pizza recipe was created by chef Rudy Malnati Sr., the father of Lou Malnati. Pizzeria Uno claims to have originated the deep dish pizza. Sewell opened two additional restaurants in response to Pizzeria Uno's popularity.
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