Gokudo Meshi

Former salary-man Ozu, habitual thief Hachinohe, swindler Sakai, gang member Araki have been locked up in cell 204, a shared cell in a prison. Hara Ippei, a man who violated the Swords and Firearms Control Law, arrives. A quiet battle for side dishes unfolds in cell 204 without being detected by the prison guards. The five of them including Ippei engage in a heated contest to tell appetizing food stories, talking about the most delicious food they have eaten outside of prison. The winner is the one with the most number of people taken in by the story and can choose one of the side dishes he likes.
(Source: jdramas.wordpress.com)