Bacon and eggs is a Human breakfast dish made from cured meat from pigs, known as bacon, a form of pork, and specially prepared chicken eggs.
In 2371, Miles O'Brien noted to Quark that "darts and bars go together like bacon and eggs". Quark responded that his customers actually ordered bacon and eggs, but had never asked to see the dartboard. (DS9: "Visionary")
Rom ordered bacon and eggs with a side of corned beef hash (otherwise known as the "Chief's Special") at Quark's before reporting for his duty shift in 2373. (DS9: "The Assignment")