Falafel and hummus have helped power a rise in sales at Greggs as the bakery chain expands from its traditional sausage rolls to embrace trends for clean eating and vegetarian options.

The bakery chain reported a six per cent rise in revenues to £422 million over the first half in the year.

Chief executive Roger Whiteside said he believes the company has found a recipe for success after increasing the range of healthy options in response to consumer trends.

He added that the chain will also be launching its first gluten-free products within months.

It's a far cry from the chain's more traditional staple ranges such as sausage rolls, cakes and pasties.

Mr Whiteside has also revealed that he is considering branching out into Mexican food and one day potentially even sushi.

He added that there was no sign of a Brexit-induced slowdown - but said that customers would be looking for more value in a downturn.

Greggs' pre-tax profits for the first six months of the year were broadly flat, coming in at £25.3 million, held down by one-off charges linked to the closure of three bakery sites.