That's a good one--perhaps too good to qualify as a true "greasy spoon"!
However, the best, most honest-to-goodness authentic greasy spoon was the late, lamented...
IAN'S JUBILEE COFFEE SHOP
On Richmond near Fort, next to the equally missed Turner's newstand.
I miss wisecracking Ian and his sassy staff slinging hash and pouring coffee!
Yah I liked Ian's it was good!