Taco Bell's 2012 Doritos Locos Taco was creative and adventurous.
The Mexican chain's tacos made sense with Doritos, but this was a new fast-food fusion.
The Yum Brands (YUM) and PepsiCo (PEP) relationship was a huge success, spawning hundreds of spinoffs.
It has inspired fast-food companies to combine flavors.
Companies raced to tie their products to snack chip brands, which led to many bad ideas.
Burger King wasn't afraid to try chicken tenders, which McDonald's (MCD)Chicken Fries didn't combine flavors. Instead, it blended chicken nuggets with fries.
Burger King innovation lately has focused on The Whopper. The firm has made dozens of its classic sandwich.
Burger King’s new Ketchup Nuggets feature bite-sized pieces of 100 percent Canadian white meat chicken coated in a ketchup glaze.
Burger King invests on global digital operations as well as food innovation.
Restaurant Brands International's first-quarter earnings call CEO Josh Kobza said that.