He had other ideas.

Last week he opened Sheffield's first sushi bar – complete with conveyor belt from the kitchen on which are placed dishes.

When one you fancy passes your table you whisk it off to eat.

Stuart may also be the city's youngest restaurateur at 21. He's hedging his bets so, as well as sushi and sashimi, the Sakushi bar on Campo Lane will also be serving noodle dishes.

"People are not that keen on sushi in Sheffield," says Stuart. "If so, they can stop and taste a noodle dish."

Stuart, who is studying for a business and marketing degree at Sheffield Hallam, saw what he thinks is a gap in the market in the city. The nearest sushi bars with conveyor belts are in Leeds and Manchester.

He has raised the money through loans and says he is using some of the profits he made from an on-line import export business.

That triggered his interest in sushi: "I was doing business with an electrical equipment company which makes conveyor belts."

The silver coloured belt, which snakes down the middle of the restaurant before doing a circuit of a water feature, is the central feature of the 60-cover restaurant, with a simple decor of red, white and black.

Dishes are colour coded – each with a different price – and you pay when they add up the empties.

Stuart has employed three chefs, including head chef Junji Aida, previously at the Four Seasons Hotel in London. His speciality is tempura batter dishes.

Stuart set up the business with advice from SENTA, the Sheffield Enterprise Agency.

Sakushi is open Mon-Sat 12-3pm and 5-10pm. Tel: 0114 273 7399.