谢谢 ：）

she finds cooking troublesome

Almost . . . you can say:

Cooking is too much trouble. (Let's go out to eat.)

Riding a bus is too much trouble.  (Let's take a taxi.)

谢谢你 ：）

So,我们可以直接用trouble 来表达某人嫌麻烦的对象？

Can we say "cooking is too trouble."(做饭太麻烦)  

Is this sentence correct?

Cooking is more trouble than its worth.

I dislike cooking; it is too much trouble.