Combined greens, orange sections, celery and green onion in a large bowl. Set aside. Combine vinegar, Splenda and vegetable oil in a small mixing bowl. Stir with a whisk until well blended. Drizzle dressing mixture evenly over greens mixture. Toss gently to coat. To serve, place 1 cup salad mixture on a serving plate and garnish with 1 tablespoon almonds over the top of salad. Serve immediately.