What makes this 3-bean salad special?

Ittlebit of your thyme.

This classic, sweet-sour vegetable s alad is open to interpretation. Chickpeas may be substituted for any of the beans, for instance, and crumbled cheese (tangy feta or blue) can be added shortly before serving; for the latter, start with 1/4 cup and add more, as needed.

For best flavor, the salad needs to marinate in the refrigerator for at least 6 hours. It can be made up to 3 days in advance.