Yes, this isn't just on United. However, it's the home of UA. The restaurants in Terminal 5 at ORD have been closing ridiciously early. I saw this last November, and I saw it last month.

Tortas Fronteras closes before 7:30. Tucco closes at 8pm, most other places close by/before 7:30. The entire food court was closed and dark. Hub51 closes their dining at 6pm. With a lot of traffic and banking flights between 8-11pm, this is crazy.

I was looking at the hours+listing. Those hours are not correct: https://www.flychicago.com/ohare/eat...s/default.aspx