Fruit Salad with Honey Dressing

1/3 cup honey
1/4 cup orange juice
1/4 cup canola oil
1/2 teaspoon fresh lemon juice, plus the juice 1 lemon
1 1/2 teaspoons poppy seeds
1/4 teaspoon salt
1/4 teaspoon prepared mustard
1 apple, cored and diced
1 banana, sliced
1 avocado, peeled and sliced
1 (11-ounce) can mandarin oranges, drained
1/4 cup raisins
1/4 cup chopped walnuts or pecans

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.