Cook pasta to al dente in salted boiling water according to directions on package.
In a mixing bowl whisk together Greek yogurt, mayonnaise, vinegar, honey, sugar, poppy seeds and 1/2 salt.
Add drained pasta to a salad bowl along with chicken, grapes, celery, almonds, green onions and cranberries.
Pour dressing over top and toss to evenly coat. Season with more salt to taste and toss.
Recipe source: Cooking Classy