Franco Manca and the Real Greek owner Fulham Shore has posted a 35% boost to pre-tax profit in its H1 numbers for the six months up to 23 September 2018.
Net debt also fell across the period, from £12m at the last year-end to £8.9m.
The firm opened two new Franco Manca sites over the period, and another has opened since the end of H1. In its financial statement, the company said it now plans to increase the expansion it has already scheduled for 2020.
Chairman David Page said: "Our two restaurant businesses performed well in the first half of the year, driven by a number of factors, including new menu initiatives, including vegan and gluten-free options, within both businesses, and investment in our digital channels."
He added: "At the same time, we have remained resolutely focused on both Franco Manca's and the Real Greek's standout characteristics: exceptional food provenance and outstanding value for money menu pricing."