Ok, ok! let's see... there's:
"I didn't order the triple-bun in my burger!"
or:
"Well you said it was so cute you could eat it up!"
OH, and also the classic:
"Waiter, there's a hare in my burger!"

Hmmmmm. Hamburger "bun."
We all have heard of a hamburger bun, but hamburger BUNNY? Close enough.
(I'm just saying.)