Supersize McDonald's built for London 2012 Games in Stratford will be world's busiest, but will last only for six weeks

Would you like to supersize that? In a case of taking fast food to the extreme McDonald's has embraced the pop-up restaurant trend for the 2012 Olympics by building a fast food restaurant of world record breaking size in Stratford, east London, that will last for six weeks.

About 300m from the Olympic Stadium, it will displace Pushkin Square in Moscow as the world's busiest and is expected to serve an estimated 50,000 Big Mac burgers and 180,000 portions of fries – feeding 1,200 customers an hour at its busiest – from the beginning of the Olympics to the closing of the Paralympics.

Once the Games are concluded the two-storey chalet-style building in the Olympic Park will be dismantled and 75% of it re-used or recycled.

From tables and highchairs through kitchen equipment and electric light bulbs, fittings and switches, to timber and air conditioning units, about 5,500 components have been earmarked for reuse in 1,200 existing and new McDonald's restaurants in the UK. Other items, such as those made of plastics, will be recycled. Even the toilets in the 3,000 square metre restaurant are papered with tile-effect vinyl wallpaper to avoid the wastage of about 30 tonnes of broken tiles after the restaurant closes. The building went up in six weeks (although fitting out took considerably longer) and will take four weeks to dismantle.

Jill McDonald, chief executive officer of McDonald's UK, said the move was "a world first" for the chain in its drive to be sustainable, meeting targets specified by the London Organising Committee. During a tour of the restaurant today, she said: "London 2012 is set to be the most sustainable Games ever hosted and this ambition inspired us not only to fulfil our role as official restaurant in the catering operation behind the event, but also to bind sustainability into the heart of our state-of-the-art Olympic Park restaurants."

McDonald's is a longstanding sponsor of the Olympics, with an exclusive deal ensuring it is the only branded restaurant on site. But its dominance has attracted protests from doctors and health experts who believe the Games should not be so closely associated with potentially unhealthy food brands. The company has defended its menu, claiming it offers the widest choice ever offered at an Olympic Games, with healthy options including new iced fruit smoothies and new fruit drink Fruitizz. The menu features products from the other sponsors, however, including a Wispa Gold McFlurry (from Cadbury) and soft drinks from Coca-Cola.

As the official restaurant of the Oympic Games, McDonald's will have four Olympic Park restaurants – two for public use – including this super-size one, another in the Athletes' Village and one in the Media Centre.On the basis of ticket sales information from Locog, managers are predicting that the busiest day of all will be Friday 3 August, when swimming finals will take place along with many major track and field events. The restaurant has been built to seat 1,500 diners – with plenty of seating space outside and on balconies – although it can accommodate up to 2,000 including those waiting to buy food and drink.

McDonald's is aiming to serve all customers within 3 minutes of placing their order, and to avoid queues building up it has designed four new-style express lanes with hand-held order taking and contactless payment. Of other innovations, staff will collect all used cooking oil from the restaurant and recycle it into the special blend of biodiesel that fuels more than half of its UK delivery trucks. And the recycling system is the most sophisticated of any yet used in a McDonald's restaurant.

The 2,000 staff working at the Olympic restaurants have been hand-picked from its top-performing employees and will be the first to wear a brand new uniform designed by Wayne Hemingway, which includes fully close loop recyclable aprons.

McDonald went on: "We'll be serving the broadest menu we've ever provided at an Olympic Games, thanks to the continued evolution of our menu, our longstanding British supply chain, and the technology we have in place to handle the highly complex Olympic catering challenge."