Ben Affleck dines with Lindsay Shookus and his parents

More the merrier, the merrier!

Ben Affleck and Lindsay Shookus were seen having dinner with the producer's parents in Santa Monica, California on Saturday night.

the Justice League actor, 45, dressed casually for the family outing, wearing a leather jacket, a black t-shirt, jeans and sneakers. Shookus, 38, also opted for a discreet ensemble, dressed in a pale pink sweater, ripped jeans and white heels.

According to a spectator, the entire group enjoyed a two-hour dinner sitting on the terrace of Cassia, a restaurant that serves Southeast Asian cuisine.

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"Ben was in a good mood," said the witness to the people at the exit. "Lindsay seemed very happy to have her parents here."

As for Affleck's relationship with the Shookus family, "you can say that Ben is getting along well with his parents," remarks the eyewitness. "They were all chatting and laughing, they shared a family-style dinner with many of the restaurant's favorites, including chickpea curry and fried steak.Ben picked up the check at the end of the night."

The couple, who released their romance last summer, has already been seen sharing a private dinner Monday night.

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Shookus – who worked for years as a star-maker behind the scenes Saturday Night Live – recently opened She about "being considered a public figure".

"It's strange for me," she says. "My whole career has been behind the camera, and it's really where I'm most comfortable.I'm a producer, I'm a mom, a friend." Being considered a public figure to me honestly laughs. "

Shookus, who has a 5-year-old daughter from a previous marriage with producer Kevin Miller, also added that "in the past two years, she's been slow … to be done better internally ".

"Self-esteem means something – I thought it was a joke for a long time – it's really important, pausing is really important," she added.

Affleck also shares three children with ex Jennifer Garner: Violet girls, 12, and Seraphina, 9, and son Samuel, 6.

Ben Affleck and Lindsay Shookus

Eric Jamison / Invision / AP

A source has already told PEOPLE that Affleck and Shookus are "still very together". Another source said that the couple "do not rush", but that they "enjoy the company of the other" and "are in a committed relationship".