While I do not necessarily think of Columbia, SC as a culinary destination, a growing number of restaurants have been impressing me on visits there for conferences, board meetings, and book festivals. One such place is Crêpes & Croissants, on Sumter Street, right around the corner from the Columbia Marriott and the Sheraton. I always end up at conferences at the Marriott and this is SO much better than pricey hotel breakfast. This would work for lunch too, as they are open until 2 most days.
I went with a librarian friend and we both had interesting coffee drinks, a crepe, and a pastry. I had a sweet lemon crepe (lemon curd and whipped cream), a chocolate croissant, and a cafe miel. Next time I'll try something more savory - their omelets and quiche sounded great too. This place is a bit hidden between chain restaurants but worth seeking out!