Named after the Mount Vesuvius volcano near Naples, chicken Vesuvio is a specialty of Chicago's Italian-American restaurants. The dish is made with chicken on the bone, potatoes, olive oil, white wine, garlic, and oregano and finished with green peas.
Lemon juice is also often a common ingredient in chicken Vesuvio recipes. In Chicago, this cooking technique is sometimes applied to other foods as well, like steak Vesuvio, pork chops Vesuvio, or even just Vesuvio potatoes.