For the dressing, combine the honey, orange juice, oil, 1/2 teaspoon lemon juice, poppy seeds, salt, and mustard in a jar with a tight lid; cover and shake well. Toss the apple, banana, and avocado with juice from 1 lemon to prevent the fruit from turning brown. Combine the fruit, raisins, and nuts in a glass bowl. Add the dressing and stir gently. Serve on red leaf lettuce.