No prices on their online menus. I guess if you have to ask…
Maybe the “RH Burger” under the “All the Rest” on the dinner menu?
http://www.theroyalhen.com/dinner-men
You just ask for it. It’s not an official menu item, but they will make it if you ask.
ipsedixit:
It’s not an official menu item,
Is the burger you’re referring to something different than the one on the dinner menu?