There are a lot of common foreign foods that may not be very popular in China, here are some examples:

1. Steak: Although you can eat steak in China, the way it is made and the flavor of steak in the Western style is still different from that in China.

2. Burrito: This is a Mexican-style fast food that is very popular in the U.S., but not very popular in China.

3. Pizza: Although there are pizza stores in China, the flavors and toppings are somewhat different from those abroad.

4. Fried Chicken: Fried Chicken is very common in China, but it has a different style and flavor in different countries.

5. Croissant: This is a French dessert that can be bought in Chinese cafes, but the imported croissant has a more authentic taste.

In short, due to the different food cultures of different countries, there are specialties in all parts of the world.