San Antonio-based Whataburger says its restaurants would resume 11 p.m. to 11 a.m. breakfast service Friday.
Whataburger began limiting its breakfast-serving hours on June 1 to 5 a.m. to 9 a.m. weekdays and 5 a.m. to 11 a.m. on weekends.
At the time, Whataburger said the changes would allow it to supply all of its locations.
Chief operating officer Dino Del Nano says it's been a tough couple of weeks and thanked customers as Whataburger built up its egg supply.
The U.S. Department of Agriculture says confirmed outbreaks in the Midwest have cost chicken and turkey producers 48 million birds.
This story has been corrected to show that Whataburger is based in San Antonio, Texas, not Corpus Christi, Texas.