Here are the correct forms of the words in the brackets:

1. My favorite dish is **fried** rice with eggs. It’s very delicious. (FRY)
2. Paul works as a sales **assistant** in a department store. (ASSISTANCE)
3. Excuse me, where is the **changing** room? (CHANGE)
4. Vietnam has a lot of **amazing** dishes, such as Phở or Bún chả. (AMAZE)
5. Cơm tấm is a rice dish with **grilled** pork. (GRILL)
6. These snacks are full of sugar and salt. They are not **healthy**. (HEALTH)
7. The food in this restaurant is not really good, but we like the **sell** here. (SELL) - Note: This sentence should likely read "but we like the **sale** here."

Please check if "sell" was intended to be connect to "sales" instead of "sale."