Lalibela is my "go to" Ethiopian restaurant.
Lalibela's menu is quite extensive and the food is very authentic. The injera is very fresh, servings are large and the staff takes time to ensure you know what you are ordering and that you order the right amount.
My advice is to not be shy with the menu items - everything Lalibela makes is great and they provide a great opportunity to try more exotic Ethiopian dishes along with the tried-and-true standards.
Lalibela is recommended!