Step 1

Bring the potatoes to a boil in a pot of generously salted water. Cook the potatoes until they are tender and can be easily pierced with a skewer, about 12 minutes from they start boiling. Drain and let cool until they are warm.

Step 2

While the potatoes are cooking, bring a second pot of salted water to a boil and cook the green beans for 4-5 minutes, or until tender. Drain the beans and plunge them in cold water. Once they are cool, cut the beans into 1-2 inch lengths and add them to the bowl with the potatoes.

Step 3

Mix together the dressing and toss it with the warm potatoes and beans. Let cool to room temperature. Then add the tomatoes, olives, basil, and caper. Toss to combine and serve.