BigHospitality revealed in May that Christodoulou had left The Athenian to launch a rival Greek brand called Smashing Plates, which has opened four London-based bricks and mortar locations and five delivery kitchens across the UK that are all on sites previously occupied by The Athenian.
The move left The Athenian with half of its estate intact, including five delivery kitchens located in Wood Green, Brighton, Leeds, Nottingham and Manchester.
In the coming weeks The Athenian is now set to launch three new delivery kitchens, beginning with a Growth Kitchens site in Balham later this month.
This will be followed by Food Stars locations in Kentish Town and Wandsworth in August.
The Athenian was founded in 2014 by Christodoulou and Tim Vasilakis, the latter of whom remains a director of the group.
In a statement following Christodoulou's departure, Vasilakis said: "The Athenian was launched by Athens born Tim Vasilakis, as a small street food stall back in 2014, and continues to this day under his ownership.
"The Athenian remains a fiercely independent brand and continues to offer its award-winning gyros with its unique recipes from White City, Shoreditch, Victoria and Bristol as well as nationwide delivery kitchens, and is excited to be announcing new sites across the UK very soon."
Smashing Plates is influenced by Christodoulou’s Greek-Cypriot heritage and will feature a menu centred around ‘unorthodox takes’ on classic Greek street-food dishes and gyros.