Ashley Tisdale & Martin Johnson: Umami Mates

Ashley Tisdale tugs on boyfriend Martin Johnson‘s collar as they finish lunching at Umami Burger on Tuesday afternoon (February 21) in Studio City, Calif.

After grabbing a bite to eat, the 26-year-old actress headed off to record for Phineas and Ferb.

PHOTOS: Check out the latest pics of Ashley Tisdale

Ashley also caught up with her former Hellcats sister, Emma Lahana.

“not sure if my muscles hurt more from yoga or laughing hysterically at dinner with my sister love @ashleytisdale,” Emma tweeted of their meet earlier this week.