Everything seasoning has been proven to not only work well on a bagel, but on a bunch of different food items.
Burger King has created a new brioche bun covered in everything bagel seasoning (salt, pepper, seeds, etc). The buns can be used on a Whopper, a Royal Crispy Chicken Sandwich, or any breakfast sandwich.
The buns are currently only available in Huntsville, Alabama and Albuquerque, New Mexico. Fingers crossed they roll them out across the country.