I meant to list Camino Real, Eric, which I know you like. I certainly wouldn't include The Glass Menagerie on such a list. Poetic realism might be a good term for it.
Caryl Churchill is another good writer for the list, I agree.
CLOUD 9 is the first one that came to mind, such brilliance. ANGELS IN AMERICA can fit this category, part of Kushner's brilliance comes from incorporating such poignant realism with the fantastic aspects to the point that sometimes I forget it's a non-realistic play.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"