Customization is a draw for build-your-own burrito concepts, but fully assembled, limited-time offers can generate return business, says Mike Monroe, director of operations for 15-unit Blue Coast Burrito. “They show our regulars that there’s something unexpected, something new, for them to try,” he says. Menu Auditions, as Blue Coast calls its LTOs, debut seasonally and help set apart the regional chain from national competitors such as Chipotle. A recent Hawaiian Burrito “tryout” was so successful, it’s set to return for a repeat performance.