The former Foxhill Manor hotel chef will be serving an a la carte and eight course tasting menu of modern British food with European influences.
The 60-cover restaurant will include a 21-cover private dining area, promising fine dining 'without the traditional formality'.
Stewart said: “I’m delighted and honoured to have been appointed head chef at Quill. It’s a beautiful venue in the heart of Manchester, a city with a great foodie reputation. We are here to change the scene and will be serving top quality dishes and contemporary cuisine.”
Though this year’s Michelin Guide saw Manchester miss out on a Star once again, the chef explained that he was confident Quill would ‘set the standard for the King Street food scene’.
Stewart said: “Quill is a fine dining restaurant and we will be competing with some of the biggest names in the industry, which are right on our doorstep.
“Manchester has made a real mark on the culinary map in recent years, and it finally feels like this city is ready to except refined food.”
Quill is the latest venue from On The Wall Group, a Manchester-based bar and restaurant group tailored to ‘high end clientele’.
Chris Longmate, CEO of On The Wall Group, said: “We are offering a beautiful place where our guests can enjoy excellent food, drink and cocktails in intimate settings.
“Curtis is a great addition to our team and he promises to deliver the highest standard of food every time.”
Quill will officially open its doors on 30 October, following a private VIP event on 29 October and a series of soft launches.