The good ol' days: Coney Beach trades on nostalgia as guests build their own hot dogs and burgers.(first look)

David and Camille Rutkauskas have already made a name for themselves with Camille's Sidewalk Care, a California-influenced sandwich concept. The fast-casual chain they founded 10 years ago has grown to 106 units in 36 states. Now the husband-and-wife team plans to expand their portfolio with Coney Beach, a fast-casual hot-dog and hamburger concept inspired by the beach hot-dog stands of the 1970s.

"Every town has fast-food places that serve hot dogs and hamburgers, but we think there's a real service gap existing in quality burgers and quality hot dogs," says David Rutkauskas, founder and CEO of parent Beautiful Brands International. "I didn't personally see anything …