The big quick-service chains have been busy in recent months introducing menu items that they hope will create buzz, bring in new customers, get their current customers to visit more often or, ideally, all three.

From items with health halos such as Burger King’s Turkey Burger and McDonald’s Egg White Delight McMuffin, to more indulgent items, such as Arby’s King’s Hawaiian roast beef sandwiches and the Pop-Tart ice cream sandwiches at Carl’s Jr., quick-service brands have been tracking trends and gauging their consumers as they strive to score big with new products.

Burger King’s Turkey Burger

Burger King made history in March by becoming the first of the big three burger chains to introduce a turkey burger nationally.

The 7,183-unit chain’s sandwich was offered at a suggested retail price of $3.99 and was made with lettuce, tomato, red onion and mayonnaise on a premium bun.

Burger King gave that limited-time offer and other new items, such as its chipotle chicken wrap and new coffee and fruit-based beverages, credit for accelerating sales in March.

Burger King’s BK Rib Sandwich

Burger King subsequently launched a limited-time rib sandwich in May as part of a barbecue-themed summer menu. The rollout of the $3.49 sandwich appeared to be an attempt to compete with the McDonald’s cult favorite, the McRib.