"Kelly and James have loads of mutual friends which is how they were introduced," a friend told the Mirror.
"It made sense for a few of their chums to come along," added the source of their evening the Kensington eatery. "So as to keep it really casual and informal, but Kelly had a real sparkle in her eye. She had loads of fun, which is exactly what she needs at the moment."
Kelly's nearest and dearest are keen to see her happy again after her recent break up. The 34-year-old had been engaged to David McIntosh, but the pair went their separate ways in September.
The Piranha 3D actress broke the news of her split via Twitter, writing: "It's a sad Day but I wanted to share with you that David and I are no longer engaged.
"I love and respect him and wish him all the best," she added, before deleting the many photos of the ex-Gladiator from her Instagram account and removing her engagement ring for an outing in LA.
Kent-born Kelly is gearing up to celebrate her 35th birthday on 23 November. On Friday the model posted pictures of her extravagant birthday dinner, which included a homemade sweet-adorned cake and balloons spelling out her first name.