Though I don't know how enjoyable it would be to eat there nowadays... back then I was only vegetarian, and there were plenty of potato salads and meat-free pasta dishes to choose from. Now it would probably be a nightmare, haha.
I'm pretty sure golden corral's buffet lineup has been largely unchanged since... basically ever. It's rare joints like that in the US have much of a shakeup in offerings, outside a few things that rotate throughout the week and maybe a couple others that are seasonal or somethin'. Basically, anything you ate once you'd probably be able to eat again, even if it's been like a decade. Or two. Or more. Place more or less has the same friggin' bread rolls they did in the 90s, last I ate at one.
Which has been a few years cause I kinda' hate eating buffet, but eh.Most country buffet type things tend to have plenty of non-meat options, though. Most buffet type things in general, stateside. Hell, usually there's more variation there than there is with meat, both due to customer inclination and cost. Folks like their meat but most like their sides pretty heavily, too, and the restaurant would really love it if you ate less of the generally (much) more expensive meat.
Your biggest conceptual problem as a vegetarian would probably be stuff cooked
with meat. Greens cooked with ham or bacon for flavor more than to be ate, that sort of thing. McDonald's fries kinda' stuff.