The space itself is a cozy, bar-forward room built for all-day and late-night service, staying close to its diner roots rather than reaching for anything more formal.
Michelin selected Au Cheval for its guide in both 2019 and 2020.

Au Cheval is a diner that decided to be uncompromising about one thing: the burger. Double patty, griddled hard, American cheese, a fried egg if you're smart, Dijon mayo doing the work other places assign to a dozen ingredients. It's a simple order that turns out to require real technique — the crust on the beef, the exact runniness of the yolk, the ratio holding across hundreds of plates a night. Most places that famous for one dish get lazy around the edges. This one hasn't.
The room plays it straight too — dark, clubby, diner-adjacent rather than diner-cosplay, with a kitchen that clearly treats the fries and the bologna sandwich as more than filler while everyone's waiting on the headliner. The wait itself has become part of the restaurant's identity, and that's a real cost worth naming. But the payoff at the table matches the reputation instead of trading on it, which is the rarer thing.
Michelin selected it in back-to-back years, recognition earned for the same reason the line never shortens: the food does the arguing, not the hype around it. Au Cheval built a national name off a burger and kept the burger honest. That's the whole case, and it holds.