THE KFC BURGER COLLECTION If you're looking for the ultimate chicken burger,, look no further! A 100% breast fillet that's delivered fresh not frozen* and then coated in our 11 secret herbs and spices before being freshly prepared with crisp lettuce and mayo on a seeded roll . Layer your toasted sesame seed bun with the burger sauce (or zinger sauce), baked chicken, fresh lettuce, tomato slices, and a slice of cheddar cheese . The combination of textures and flavors is what makes this burger a winner.