1. Cook asparagus according to package directions. Drain and cool.
2. Meanwhile, in a medium bowl, sprinkle shrimp with lemon juice. Let stand for 2 minutes; drain well. Add 1/4 cup of the dressing and green onions. Chill for 20 minutes.
3. To assemble each salad, line salad bowls with lettuce. Arrange asparagus in a fan shape. Spoon shrimp mixture over base of asparagus. Garnish with tomato, lemon and parsley.