East Rutherford, N.J. — German Doner Kebab (GDK), a fast-casual restaurant chain, plans to open 350 restaurants in the United States over the next 7 years. The first location will be within American Dream in East Rutherford, N.J. The Glasgow, Scotland-based company specializes in doner kebab, which is a slow-cooked meat often served on a flatbread. GDK operates more than 70 locations in the United Kingdom, Sweden, Dubai, Abu-Dhabi, Oman and Bahrain. GDK also plans to open locations in Ireland and Saudi Arabia. New York City-based JAACRES is representing GDK …