Watermelon and feta are staples at every Charlotte grocer, and basil grows year-round locally or appears fresh at Harris Teeter and Kroger; no special trips required. At roughly a dollar per pound for watermelon in summer and six dollars for quality feta, this runs about two dollars per serving in season, making it genuinely cheap for entertaining. The stated fifteen minutes is honest—you're cutting and crumbling, not cooking—and this works perfectly as a make-ahead appetizer that holds for hours on a hot day. The only constraint is seasonality; outside June through August, watermelon loses its appeal and feta stays pricey while basil may need the grocery store instead of the garden.