mess hall

a place in which a group eats regularly, especially a dining hall in a military camp, post, etc.

Origin of mess hall

First recorded in 1860–65

And in truth the officers' mess-hall presented a brave barbaric effect that had a sort of splendor all its own.

The Story of Old Fort Loudon |Charles Egbert Craddock
Drill was dispensed with, and the cadets lost no time in eating their breakfast in the mess-hall.

The Putnam Hall Encampment |Arthur M. Winfield
I found the officers already assembled at one of the long tables in the mess-hall.

Reminiscences of Forts Sumter and Moultrie in 1860-'61 |Abner Doubleday
"Yes, sir," said Jack, and he and Fred hurried off to the mess-hall.

The Mystery at Putnam Hall |Arthur M. Winfield

It was not until the boys entered the mess-hall that they saw Dan Baxter again.

The Putnam Hall Rivals |Arthur M. Winfield

mess hall

a military dining room, usually large