does anyone know how to replicate this?!
It's on their menu. It's Sour dough, an egg over-hard, hashed browns and cheese with your choice of bacon, sausage patty, ham or hot link...
To get the bread crispy, you butter it and throw it on a flat grill while cooking everything else. If it's truly diner style, it's American "cheese," because it melts really nice when you put stuff on it.
Hashed browns, you want a really, really hot griddle (most diners have a grill that run from 375-400 F for surface temperature), you want to toss those taters in a puddle of butter/oil and let them sit before flipping, and you don't want to keep flipping or stirring, but you don't want them to burn - so medium heat, hot oil, flip in two minutes, don't put more than half a cup or 1/2 inch thick.
Over-hard, you break the yolk and cook it through, and well, the meat is cooked the way it's cooked. :) Pile it together, and voila.
Restaurant manager for too long.