Victoria Beckham treats the children to her favourite Japanese cuisine in Soho

She spent most of Saturday working hard on her fashion collection.

So Victoria Beckham certainly wasn't in the mood to cook as she treated her children to dinner out in London's Soho.

The fashion designer, 38, was spotted with sons Brooklyn, Romeo and Cruz, and her younger sister Louise Flood at Inamo Japanese restaurant on Saturday night.

Favourite cuisine: Victoria Beckham enjoys dinner at Inamo Japanese restaurant in Soho on Saturday night

Inamo is an unusual, interactive restaurant which features the menu projected on to the tables so diners can order with the click of a button.

Victoria wore an an all-blue ensemble of skinny jeans, loose-fitting jumper and green capped blue high heels.

While it looked like her toddler daughter Harper was at home with the nanny, all three of Victoria's boys were out for the meal.

Red alert: Victoria's youngest son Cruz wore a red and gold tracksuit top and jeans

Youngest son Cruz, eight, was wearing grey jeans, a red and gold baseball jacket and a pair of Vans skeleton-bone print plimsolls, which glow in the dark.

Middle son Romeo, 10, was clearly feeling the cold and was wrapped up warm in a hoodie and quilted jacket.

They were joined by some friends and Louise's four children Liberty, Tallulah-May, Finley and Quincy.

Earlier on Saturday, Victoria tweeted some behind-the-scenes photos of her on set for her new Victoria Beckham Icon collection.

Wrapped up: Romeo, 10, wore a purple hooded, quilted jacket and gold trainers for the freezing temperatures

Feeling grey: Eldest son Brooklyn, 14, wore grey jeans and a matching hoodie

She was spotted wearing a blue and green figure-hugging dress, teamed with some colourful Rupert Sanderson heels.

Posting a photo of herself perched on a roll of pink polythene roll, she wrote: 'Loving the pink bubble wrap! New shoot wearing my new Victoria Beckham ICON collection x vb.'

Then uploading a close up of her heels, she tweeted: 'Happy @RupertSanderson shoes for a snowy day in London! X vb.'

Meanwhile, it has been reported Victoria's remaining Spice Girls bandmates may be hunting for a replacement after she made it clear her singing days are over.

Helping hand: Victoria grabs Cruz as she makes her way back to the car

The brunette has frequently spoken of her wish to put her pop star days behind her and focus on her fashion career, but was persuaded to reunite with the group last year for a one-off performance at the London Olympics Closing Ceremony.

However, it's been reported that Melanie Chisholm, Melanie Brown, Emma Bunton and Geri Halliwell would love them to reunite again.

The five-piece briefly reunited in 2007-2008, but cancelled a string of dates on their world tour due to 'family commitments'.

Victoria's spokesperson told the MailOnline this weekend: 'Victoria has made no secret of the fact her singing days are over, with a hugely successful business and a growing family, she loved her time as a Spice Girl and will always wish the other girls well in whatever they choose to do.'

Family affair: Victoria's sister Louise was carrying her two-year-old daughter Quincy

Busy: Earlier on Saturday, Victoria has been shooting for her Victoria Beckham Icon Collection