The midfielder has seldom been seen since he left the club last summer when his contract expired.
His wife Alexandra Ivarsdottir has now shared a touching family photo with her 16,700 followers.
The couple could be seen grinning as they held their young daughter, who matched 2008 Miss Iceland winner Alexandra in a neutral-coloured outfit.
She captioned the snap, which was liked by more than 1,100 people, “La familia” followed by a white heart and globe emoji.
The picture was also shared on Twitter, where fans were begging Sigurdsson to return to Everton.
One said: “Come back Siggy”, while another wrote: “I miss him on grass”.
Iceland international Sigurdsson joined Everton from Swansea for £44.5m in 2017.
He was the club’s top scorer in the 2018/19 Premier League season and netted 31 goals for the Toffees in 156 appearances.
The attacking midfielder was recently linked to a move to Turkish club Galatasaray but the deal failed to materialise.
Sigurdsson, who has 78 caps for Iceland, has not played for the International team since 2020.