Mung bean sprouts, alfalfa sprouts, lentil sprouts... all go well in a green salad. Basically, anything that can be sprouted can be added to a salad.

The word bean could link coffee and salad: coffee bean/bean salad.

Sia Furler's favorite food is green bean salad with olive dressing.

Neither. A green bean is the whole bean. The pods inside the bean are not beans, they are pods, and they are what give the bean its distinctive flavour.

Typically bean sprouts are used on a salad.