Restaurant Brands lifted first quarter sales 4.2 per cent from a year earlier, as the KFC brand continued sustained growth while Starbucks Coffee and Pizza Hut sales slipped.

Fast food retailer Restaurant Brands not only served up a strong result this week but has also had the best performing share price in the last year.

Restaurant Brands is reporting full year net profit up 70 per cent, thanks mainly to perennial top performer KFC.

While the world sank into the depths of the recession, McDonald's restaurants in NZ were quietly churning out more burgers and fries than ever.

Restaurant Brands has lifted third quarter sales 4.7 per cent, led by strong growth from KFCn.