Cook alphabet pasta according to package directions. Drain and rinse in cold water to cool.

Combine alphabet pasta with apple, celery, carrot, and raisins.rrange the vegetables on the grill in an even layer. Cook, turning occasionally and removing from the grill as needed, for 15 to 20 minutes or until all the vegetables are tender and well-marked. Chop the grilled vegetables into bite-sized pieces.

Combine yogurt, mayonnaise, mustard and lemon juice. Pour over alphabet mixture and toss to coat.