pa·ni·no 
(pə-nēnō)
(pə-nēnō)n. pl. pa·ni·ni (-nē)
An Italian sandwich, usually grilled and often made with vegetables, cheese, and grilled or cured meat.
[Short for Italian panino (imbottito), stuffed bread, sandwich : panino, diminutive of pane, bread + imbottito, past participle of imbottire, to stuff.]