Fungal yams

(What appropriate timing to all my Northern friends oot there, eh!)
On a whim, our family decided to go out to eat at a buffet place. As we were being seated, we heard a couple talking about one of the choices on the bar.
"Yeah, they've got those sweet potatoes with the mushrooms on top!"
"Mushrooms?"
"Yeah, mushrooms!!!"

So the next time you make s'mores, remember, it's grahams, chocolate, and mushroom!