TRIM ends off a cucumber and cut in half crosswise and lengthwise. Run a spoon down the centre to remove seeds. Using a sharp vegetable peeler or other slicer, thinly slice each piece lengthwise into ribbons. Place ribbons in a large bowl of ice water and chill at least a half hour.
DRAIN and toss in large bowl, along with 4 cups torn romaine lettuce and 1/2 cup thinly sliced green onions.
DIVIDE salad among 4 bowls and pour 1 tbsp. Kraft Thousand Island or French Dressing over top of each. For added crunch, crumble a package of dry Ramen noodles (reserving seasoning packet for another use) into salad before tossing.