1. Bring a medium saucepan of water to a boil over high heat; meanwhile, prepare an ice-water bath. Generously salt boiling water and add haricots verts. Cook for 3 minutes and drain; immediately transfer haricots verts to ice-water bath until cool. Drain and set aside.

2. Cut carrots and parsnips lengthwise into quarters. Trim tough center from each quarter and cut in half crosswise. Cut each piece in half again on the bias to create 1-inch pieces (you may need to cut parsnips again to create a 1-inch piece, depending on size).

3. Heat olive oil in a medium skillet over high heat. Add carrots and parsnips in a single layer in skillet; season with salt. Cover, and cook, stirring occasionally, until golden brown, about 10 minutes.

4. Uncover and add haricots verts and parsley; season with salt. Cook, stirring, until haricots verts are heated through, about 1 minute. Serve immediately.