Cashner, who was clocked at 96, 96 and 97 mph on the first three pitches he threw, allowed one walk and struck out two. He threw 35 pitches, 23 for strikes.
The question now becomes: Can he build up his pitch count, stamina and endurance quick enough to begin the season as the Padres' No. 5 starter?
"I think it will be close," he said.
Cashner came to camp slightly behind the rest of his teammates after having surgery in December to repair a lacerated tendon in his right thumb.
This was his second appearance in a Cactus League game this spring. Cashner tossed one scoreless inning against the Cubs on March 10.
"I thought Cash was good, I thought he had good tempo to his delivery," Padres manager Bud Black said. "He threw some good fastballs in some good spots.
"He got up and down three times. This is more like what a starter needs to do in Spring Training."
The other candidates in camp for the No. 5 spot in the rotation are Freddy Garcia, Anthony Bass, Tim Stauffer and Tyson Ross.
"These things have a way of working themselves out," Black said.
It's conceivable that Cashner could get three more starts in Cactus League play before the regular season begins. He'll likely throw in upwards of 50 or so pitches in his next appearance.
"I definitely need some work on my offspeed stuff," Cashner said. "I located down and away. Offspeed and breaking ball were below average. I threw some good changeups and some bad ones."
Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.