How do you revitalize a legacy quick-service brand? Improve the food.
That’s what 2,250-unit Jack in the Box did with its Classic Buttery Jack. The San Diego-based chain moved away from its seasoned beef and brought in a new quarter-pound patty of 100-percent beef that it seasoned by melting garlic-herb butter on top. Then it got rid of its sesame seed bun and replaced it with a new one that&rsq