1 cup uncooked elbow macaroni
1 cup chopped celery
1 (6 ounce) can light water-packed tuna, drained and flaked
3/4 cup Frozen Peas, thawed
3 tablespoons minced fresh parsley
2 tablespoons sliced stuffed green olives
1/2 cup reduced-fat mayonnaise
1/2 cup fat-free plain yogurt
1 tablespoon red wine vinegar or cider vinegar
1/2 teaspoon paprika
1/4 teaspoon salt
1/4 teaspoon garlic salt
1/4 teaspoon ground mustard