If you are a vegetarian and plan to travel to Tibet, you don't need to worry about what to eat during your trip in Tibet. There are many vegetarian restaurants in Tibet offering you a wide range of options. You can just specify when ordering.
1. Holy Land Vegetarian Restaurant located on Linkuo Bei Lu in Lhasa (at northern end of Ramoche Road). This restaurant is considered as the best vegetarian restaurant in Tibet. In this restaurant, vegetarians don't need to worry about the 'soy fish' or 'soy chicken feet', this is 100% vegetarian food, dressed up to resemble meat dishes. It is a large place with 2 floors of dining areas nicely and comfortably decorated. The wooden tables and Buddhist images on the wall give the place a simple Zen-like atmosphere. The English and picture menus help things along. Extensive English menu with photos features elaborate dishes. Open daily 9:30am-9:30pm.
2. Wonderful Vegetarian Restaurant at Jiangsu Lu, near the west gate of Tibet University, in Lhasa. This vegetarian restaurant in Lhasa offers an English menu that features a wide variety of hot dishes consisting of vegetables, mushrooms, tofu, and/or mockmeat. It also provides a variety of snacks, soups, cold dishes, drinks. Simple food without use of much herbs and spices. No eggs or dairy used. No alchohol or smoking. Open daily 10am-10pm.
3. The Nomad at Mentsikhang Lu, Lhasa (at small alley, North of Snowlands Restaurant). This vegetarian restaurant in Lhasa is opened by a westerner in August of 2007. The Nomad makes veggie burgers and the like, as well as good coffee. It is comfortable, although a bit expensive if you are used to eating at local restaurants. It is very easy to find this vegetarian restaurant in Lhasa. You can see its sign on main road.
4. Tibetan Vegetarian Food at Linkor East Avenue, Lhasa (at south of Beijing East Road). This restaurant serves meat, veg options available. Fried rice, noodles, cheese and vegetable momos, tofu, eggs, steam, fried or pickled vegetables, and soups. This place is also a guesthouse, breakfast included. Open 9:00 am-9:00pm.
The topic of your question