The theft happened at the High Street store on Saturday 19 March at about 4pm when the man pictured in the CCTV was in the shop.
Tinned salmon and cheeses worth more than £130 were targeted in the crime.
The man whom officers wish to speak to in connection with the incident is described as white, in his mid 20s and with short light brown hair.
He was wearing black tracksuit bottoms, black trainers, a cream coloured zip-up jacket with a short sleeved fluorescent work vest. He was carrying a dark holdall type bag with a long shoulder strap and a grey hooded top.
PCSO Dave Bryan, from the Pelsall neighbourhood team, said: “We would like anyone who may know this man to come forward and supply us with a name or address to help us with our inquiries.”
Anyone with information is asked to contact officers on 0345 113 5000 or alternatively contact Crimestoppers anonymously on 0800 555 111.