Core menu items, such as French fries and the Whopper, have also been tweaked as part of the company's efforts to improve food quality. Burger King is trying to underscore its own focus on ingredients with a new tag line, "Taste Is King," which replaces "Have It Your Way." A new ad has been celebrating summer barbecues to highlight the chain's emphasis on fire-grilling burgers. The new summer items will be featured in ads starting Thursday.