The phrase "a breakfast with a" is correct and usable in written English.
It can be used when describing an event or occasion that involves having breakfast together with someone or something.
Example: "I have planned a breakfast with a few close friends to catch up and enjoy some good food."
Alternatives: "a meal with a" or "a brunch with a".
Earlier in the morning, at a breakfast with a small number of journalists, many of whom Mr. Khatami knows, he was more relaxed.
Yesterday, she held a breakfast with a small group of professional women, and today she planned a bus tour around New York City with Eleanor Smeal, president of the Feminist Majority Foundation.
"Why didn't you land a plane in Vietnam?" Mr. Kerry wrapped up a weeklong swing through the Midwest at a breakfast with a dozen Missouri veterans who have volunteered in his campaign.
At a breakfast with an operative, Mario nodded his head at his son and said: "He's thick skulled; he won't listen to me.
But during a breakfast with about a dozen reporters this week, Furlong acknowledged that they had not anticipated three challenges in particular.
Walker responded by ticking through his recent itinerary of face time with foreign policy luminaries: a breakfast with Henry Kissinger, a huddle with George P. Shultz and tutorials at the American Enterprise Institute and the Hoover Institution.
The circumstances, by the way, were these: A Capitol Hill reporter for the Associated Press, spotting Obama emerging from a breakfast with constituents, asked him a question.
There will also be the usual question-and-answer sessions with filmmakers after screenings, panels on film distribution and scriptwriting, an opening reception, a breakfast with filmmakers and a closing ceremony, which honors the actor Armand Assante.
On the day of the attack, G. Parker Johnson was having a birthday breakfast with cousins at a greasy spoon in his hometown, Atlanta.
