It's not the natural habitat of the millionaire.

But if you visit a particular McDonald's store in Cardiff, you've every chance of being served by one.

Luke Pittard, 25, won £1.3 million (US $2.6 million) in the National Lottery 18 months ago.

He celebrated in the usual way, buying a new home and splashing out on a lavish wedding and holiday in the Canary Islands.

Then he realized that he really missed his job.

So he asked to go back and couldn't be happier, getting up at the crack of dawn to flip burgers for £5.85 an hour.

"They all think I'm a bit mad but I tell them there's more to life than money," he said.

"I loved working at McDonald's before I became a millionaire and I'm really enjoying being back there again."

Few customers at the restaurant in Pontprennau, Cardiff, realize that a millionaire is frying their fries or taking their money behind the counter.

Mr Pittard and his girlfriend Emma Cox, 29, were working there together when he hit the jackpot.

They hung up their uniforms and settled down to domestic-bliss in a £230,000 home with their three-year-old daughter Chloe.

But 18 months later, the novelty of early retirement wore off.