FranElizabeth - Veggies out here don't survive on Quorn. When they eat out they eat at one of the many Veggy restos in Doha. And, AFAIK none of them have Quorn on their menus. Try GMC in City Centre Mall. I haven't seen Quorn there but they might have something similar.

PS: Semolina based breakfast dishes are a major part of the Indian Veggie menu. Try some of the restaurants here.