There is a large Buddhist population in Vietnam, so the vegetarian life style is prevalent here. When you order from a vegetarian restaurant you will see a menu that usually includes:
Pork Rib
Stir fried Shrimp
Braised offals
Chicken wing or leg
and even Whole Baby Pig
Everything is 100% Vegetarian and delicious. Most dishes are created using some texture of soybean or different types of flours.