Cas does like burgers, oddly enough. Except that it makes him think of Jimmy, and again Castiel sends out a prayer hoping that at the very least, James Novak made it to Heaven. If Jimmy was stuck in Purgatory-

Well. It was another thing he needed to rectify. He won't abandon that man's soul to eternal unrest with the monsters of the world.

"Yes. Thank you." Except that Castiel is racking up these favors in his head and he's going to need to repay Dean with like a hundred years of servitude at this rate.