Place the haricots verts in a large microwave-safe bowl. Cover and microwave on high for 5 to 7 minutes. Remove and drain, if necessary. In a small bowl, whisk together the sour cream and lemon juice. Pour over the haricots verts and toss to coat.
Serve immediately with shaved parmesan and freshly ground pepper.
Photographs by Yunhee Kim
Courtesy of Food Network Magazine