The group, which has 1,451 stores and serves six million customers every week, said like-for-like sales increased 0.2 per cent for the 13 weeks to 2 October.
Greggs said its bacon roll was the group’s best-selling sandwich line.
It is now extending its breakfast range with new products such as croissants, pain au chocolate and porridge.
Chief executive Ken McMeikan said the company was proving resilient.: “As we expected, the trading environment has been tough and is likely to remain so, with consumer spending continuing to be constrained and inflationary pressures building for next year,” he said.