Famed for being the first Sushi chain in the UK to deliver food to customers on a conveyor belt, iconic Japanese restaurant YO! Sushi has gone one-step further with the introduction of the world's first flying tray to deliver their new range of Japanese rice burgers to customers.

The 'iTray', which is now being trialled in the flagship Poland Street restaurant in London with a view to rolling it out across the UK next year, is a high-tech flying platter custom built using the most advanced RC Drone quadicopter technology and is remote controlled through an on-board Wi-Fi system and iPad software.

The gadget is made from a light-weight carbon fibre frame and consists of four propellers making it incredibly nippy. Two built-in HD cameras allow YO! Sushi kitchen staff to check that the new burger range is delivered through a real time video broadcast viewable on an iPad screen.

Developed by YO! Sushi's Executive Chef, Mike Lewis, after spending a considerable amount of time researching different regional foods in Japan, the YO! Burger removes the greasy stodgy bun and beef patty and replaces it with innovative buns made from the highest quality Japanese toasted rice and a range of five fillings - teriyaki chicken, kimchi salmon, prawn katsu, tilapia katsu fish and tofu katsu.

Each YO! Burger is served on a beautiful bespoke Japanese bento tray and is accompanied by a palate cleansing pickled daikon slaw, nori crackers in place of fries and instead of ketchup, misochup. Perhaps the best part is that the burgers deliver a maximum of 423 calories for the whole meal, making the bento tray the healthiest burger-combo ever.

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