Are there sandwiches that don't benefit from a sunny-side up (or over-easy) fried egg?
This is really a question for those that like fried eggs, and in particular fried eggs with runny yolks.
I think just about any sandwich out there can benefit from a sunny-side up egg -- be it a grilled veggie sandwich, a meat based one (like pastrami or roast beef and BBQ pulled pork), even seafood ones like a fish or an oyster Po'boy, or ethnic varieties like a Banh Mi.
There's just something special that words cannot do justice when that runny, custardy yolk bathes itself over the other sandwich fixins.
Maybe PB&J might be the exception, but I'd still give it a shot.