In medium bowl combine tomatoes, green onions, chopped cilantro, jalapeno peppers and 1 teaspoon of the salt; set aside. In large bowl combine mayonnaise, lime juice, chili powder, cumin and remaining 1/2 teaspoon salt. Add potatoes, chicken, yellow bell pepper and half of the tomato mixture; toss to coat well. Cover; chill. To serve, spoon salad onto lettuce lined platter. Spoon remaining tomato mixture over salad. If desired, garnish with tortilla chips and lime wedges.
Source "Hellmann's Mayonnaise Over 100 Ways to Bring Out The Best" ;1990