I stir in salt, pepper, onion and garlic powder and maybe a touch of breadcrumbs (I don't even know why). Once they are done (you can easily tell because they will be come firm) I top mine with cheddar. DO NOT over cook these. I went to a BBQ and was served the same kind of chicken burger but way over done and dry and gross. I still ate it.
I also like to top mine with avocado.
Or fresh tomatoes.
Or thick sweet onion.
OH. And use good buns. Hun.