Ugly Betty Co-Star: Lindsay Lohan "Throws a Bagel Well"

Lindsay Lohan caused quite a stir on the set ABC's Ugly Betty: She got into the food fight!

Relax, it was for her role.

"It broke the ice really well!" Ana Ortiz told Usmagazine.com at the Hot in Hollywood party Saturday. "She throws a bagel well!"

See more stars on set

Ortiz told Us she was "surprised to learn that [Lohan] is really funny.

"We did some improv stuff, and she just fell right into it," Ortiz said. "She threw in some off-the-cuff lines – I was really impressed!"

See photos of other stars goofing off.

Lohan, who will appear on a few episodes of the show this season, plays Kimberly, "an old high school mate of Betty's who tortured her," Ortiz said.

Years later, the tables have turned: Kimberly is down on her luck, while Betty [America Ferrera] works at a glam fashion magazine.

The third season of Ugly Betty premieres September 25.