The phrase "a brief lunch" is correct and usable in written English.
It can be used to describe a short meal taken during the day, often in a work or social context.
Example: "We only have time for a brief lunch before the afternoon meeting starts."
Alternatives: "a quick lunch" or "a short lunch".
After a brief lunch break Europe were transformed.
During a brief lunch break, Mr. Wasunna, a tall, thin Kenyan who works on combating corporate corruption worldwide, said: "I found it very valuable.
I had a brief lunch in the Senate Refectory (the traditional Navy bean soup) and walked onto the East Front to watch the President join the parade.
"If I were religious, I'd say I've been called," Mr. Kuhlman, who is an unpaid volunteer, said during a brief lunch break between students.
The service was followed by a brief lunch back at Karen's house, and then it was onward to a second service, at the church that Michael belonged to.
Just after a brief lunch recess, W. Dexter Douglass, one of Mr. Gore's lawyers, pleaded with Judge Sauls to make a decision on whether to count the ballots, which he repeated with fervor later in the day.
They don't like the way Bush emerged bemused from a briefing lunch with Clinton at the White House where Clinton put on what he calls his "razzle dazzle".
"I met him in L.A. for a very brief lunch at the Palm, and he said, 'I want to do your film,' " recalled Mr. Romanek, whose experience before "One Hour Photo," made for $13 million, had mostly been directing music videos.
Having staked out the area for a while (and had a brief picnic lunch), we climbed back on the bus for the drive towards Gullfoss, which is only about ten minutes away.
The research team provided a light lunch as the meetings were commonly scheduled during the doctors' brief lunch break.
They took brief lunch breaks and relieved themselves hastily where and when they could.
