They are preparing to tie the knot after he proposed last summer.
The photographer, 22, and his partner, 26, put on a typically loved-up display as they entered a low-key eatery together.
Brooklyn cut a casual figure in pink shorts and a white tee.
He opted for white Champion socks and sliders, and swept his brunette locks behind a headband.
Meanwhile Nicola highlighted her lithe physique in denim jeans and a backless black top.
Her mother Claudia, who is married to American billionaire Nelson Peltz, was seen exiting a black vehicle with the smitten couple while clutching a green handbag.
The couple announced their engagement last July.
Brooklyn is the eldest of four children of football star David Beckham and former Spice Girl wife Victoria.
His younger siblings are Romeo, 18, Cruz, 16, and Harper, nine.
Brooklyn has been pursuing a career as a photographer while Nicola has had some minor roles as an actress.
Nicola recently finished filming on her first co-directed film, Lola James.
The creative couple were said to have worked together on her new movie as it was reported that Brooklyn landed a photography role on set.
Upcoming movie Lola James is set in 2002 and follows the story of 19-year-old Lola who tries to save enough money to get her brother Arlo out of their 'toxic' home but ends up developing a drug addiction, reports Deadline.
The Florida Project actress Bria Vinaite, 27, co-directed alongside Nicola and Sideways Oscar nominee Virginia Madsen was also cast in the Indie flick.
Nicola previously gave a sneak peek from the set of her latest film project as she shared pictures with the Lola James cast members and crew.
Snaps included Nicola posing with co-director Bria Vinaite and cast member Luke David Blumm as she threw a peace sign to the camera and hugging a friend as others stood around clapping.
Brooklyn has already been gushing about his talented other-half's involvement in the movie on Instagram, sharing a loved-up post in April.
He penned: 'I am so proud of you and looking forward to seeing this project x you are the most talented person and I am so happy that your dream is coming true x
'You have worked your bum off to create an amazing movie and an amazing piece of art x I am so lucky I got to be a part of it and got to meet the amazing cast and crew x can't wait to see the most amazing movie "Lola James"'. (sic)
Brooklyn's photography is creating an ever-growing portfolio of enviably high profile work, including shooting Sophie Turner, a Burberry campaign, and his dad David's sunglasses campaign. He has also interned with Rankin.
© Associated Newspapers Ltd.