- Cook linguine according to package directions. Drain and rinse linguine immediately under cold water to cool; drain well.
- Peel cucumber to form stripes; cut lengthwise in half and remove seeds. Thinly slice each half and place in large bowl with linguine, carrot and green onions.
- Blend ponzu and oil; pour over linguine mixture and toss well to combine. Cover and chill about 1 hour, tossing occasionally.