When it comes to Chinese and Western restaurants, the differences are big. One main difference is in the menus.
In Western restaurants, the menus are usually very clear. They tell you what is in each dish. They also tell you how people cook those dishes. For example, the menu might tell you that a hamburger has cheese and ketchup (番茄酱). You can also know whether a dish is fried or steamed (蒸熟的).
However, Chinese menus usually don't tell you these things. But you can see a lot of pictures in them. Most Western menus do not have as many pictures as Chinese ones. In some fancy Western restaurants, the menus might not have any pictures at all. You can only find the names and the high prices of the dishes.
The names of Chinese dishes are usually not very clear. Disanxian is a nice name. But it doesn't tell you anything about this dish. However, with a picture, you can tell what is in this dish. This dish has potatoes, green peppers and eggplants. Having more photos also makes the menus more attractive to people. It can make you feel good about eating in the restaurant.