The news follows the announcement of their preliminary results for the past year, which saw sales rise 5.2% to £835.7m.
Pre-tax profit also saw an increase, up 25.4% to £73.0m.
The introduction of the company’s ‘Balanced Choice’ range, which offers a selection of healthier options including reduced calorie sandwiches and snacks, now accounts for 10% of total sales.
Roger Whiteside, Greggs’ chief executive, said: “In 2015 we delivered another excellent performance in the second year of our strategy to transform Greggs from a traditional bakery business into a modern, attractive food-on-the-go retailer.
“We have made significant progress across the business change programme, consequently our estate is stronger and our products, value and service are all improving the experience for customers.”
With 202 shop refurbishments and 20 cafe conversions throughout 2015, alongside 122 new shops opening, Greggs’ bosses hope to continue boosting numbers over the next 12 months.
“2016 will be another year of significant change as we advance with our strategic plan and propose major investment in our supply chain,” added Whiteside.