Doner & Gyros



Building a
Global Street Food Brand from the Ground Up
Doner & Gyros was envisioned as a fast-growing, franchise-ready concept designed for rapid expansion. The ambitious launch of four outlets simultaneously was made possible through robust operating systems and a strong, capable team. RSI’s involvement spanned the entire journey: from brand conceptualization and identity development to interior design and the creation of scalable operations critical to the brand’s long-term success.
Positioned as an affordable, healthy, and flavorful offering, Doner & Gyros combines the best of Berlin and Chicago street food cultures. The brand specializes in generously portioned Doner and Gyro sandwiches, prepared live in front of customers, a distinctive element that adds both transparency and excitement to the dining experience. This interactive service model empowers guests to customize their meals, choosing between Doner or Gyro styles, sauces, and fresh ingredients, adding an ‘experimental’ flair to every visit.

Scope of Work
- Brand Identity Development
- Concept Development
- Feasibility Study
- Menu Engineering
- Food Photography
- Menu Design
- Head Hunt
- Pre-Opening Support
- Management & Staff Trainings
- Interior Design
- Fit Out
- Product Design –
- Specialized Packaging
- Brand Management
Testimonials
Client Testimonials

I would like to share my genuine feedback and express gratitude to Restaurant Secrets’ team for their professionalism, dedication loyalty and commitment.
I am lucky enough, as a new business owner, to have RSI team by my side, to take us through all the challenges in the process of opening a restaurant, but also going the extra mile to make sure that everything is at the highest level starting from the interior design and to the point where the business is up and running successfully.
Ekaterina Kopanitsa
Founder, Twice Cafe Dubai

Restaurant Secrets Inc. is now operating as Cornerstone 61 Consultancy.
After more than 20 years of shaping over 500 successful F&B brands, we are evolving to be more future-focused. Cornerstone 61 Consultancy is the next chapter, built to empower modern businesses with strategic consultancy, innovative solutions, and a bold approach to brand transformation using the cornerstone pillars of excellence, creativity, integrity & stewardship on which Restaurant Secrets was built & has thrived for more than 2 decades.
Welcome to new excellence.
Our expertise remains, but our vision expands.