"finished breakfast" is a perfectly acceptable phrase to use in written English.
You could use it in a sentence like, "We finished breakfast early and got an early start on the day."
At the counter, the actor and writer Ethan Hawke finished breakfast alone, barely turning a head.
A group of men who had just finished breakfast scrambled to get to their trucks.
I'm sitting at my kitchen table because I've just finished breakfast.
Updated at 4.12pm BST 2.52pm BST $30 bill Just finished breakfast at News Cafe.
Lines for attractions were building even as we finished breakfast, so we hurried to enjoy the major rides.
After we finished breakfast, Mr. Carnes and I began to walk west, toward Fifth Avenue, where he planned to spend the morning working at a Starbucks.
He's on the other side of the hotel room door finishing breakfast.
She rang the bell at nine in the morning, as we were finishing breakfast.
By David McCord The New Yorker, July 22 , 1933P. 17 Hating to finish breakfast as I do View Article By Phil Klay By Troy Patterson By Andy Borowitz By John Cassidy.
In West Philadelphia last August, an elderly couple named Mary and Leon Adams were finishing breakfast when several vans filled with heavily armed police pulled up to their red brick home.
By David McCord The New Yorker, July 22 , 1933P. 17 Hating to finish breakfast as I do View Article By Rivka Galchen By Malcolm Gladwell By David Remnick By Jelani Cobb.
