It marked the first time Cashner put on a Padres uniform since he went on the disabled list on July 4 with a strained right lat muscle sustained in a start against the D-backs.
"My injury took a little longer than we expected," Cashner said.
Cashner allowed three runs on four hits over 56 pitches on Friday against Reno. He will slide back into the starting rotation sometime next week, according to Padres manager Bud Black.
"For us and for him, it's good to get him pitching again," said Black, noting that Cashner could probably throw upwards of 70 pitches the next time he takes the mound.
Cashner started the season as the Padres eighth-inning specialist and posted a 3.81 ERA in 27 games. He later moved into the starting rotation where he had a 2.53 ERA in three starts before the injury.
"I'm ready to go," Cashner said. "I got my three rehabilitation outings in and felt good. I worked on some stuff, getting strike one, following it up with strike two, going after hitters early in the count."
Now he'll get a chance to make up for lost time. Black said Saturday that Cashner could potentially get a gig pitching somewhere this winter to make up for the innings he lost.
"This month is big for me," Cashner said.