1. Sprinkle gelatin over cold water in a small saucepan; let stand 1 minute. Cook over low heat, stirring until gelatin dissolves, about 2 minutes. Stir in orange juice concentrate and rind. Chill until the consistency of unbeaten egg white.
2. Fold carrot, raisins, and pineapple into gelatin mixture. Spoon mixture evenly into 7 (1/2-cup) molds coated with cooking spray. Cover and chill until firm. Unmold onto individual lettuce-lined salad plates.