Potato Green Bean Salad

7 large new potatoes, peeled
1 lb string beans, ends trimmed
1 small can sliced black olives, drained
1/4 cup balsamic vinegar
1/4 cup extra virgin olive oil
3 scallions, chopped
salt and pepper

Cook potatoes in salted water, boil string beans in other pan and run under cold water when they are done. When potatoes are done, drain and slice in large chunks.

In a large bowl, combine vinegar, oil, salt and pepper, add potatoes, green beans scallions and olives. Mix well and serve room temp.