Preheat oven to 425°. In small bowl, combine Hellmann's® or Best Foods® Real Mayonnaise, cheese, chilies, red onion and cilantro. On ungreased baking sheet, arrange pizza crust. Evenly spread 1-1/2 cups mayonnaise mixture on crust, then top with chicken and remaining mayonnaise mixture. Bake 10 minutes or until cheese is melted. To serve, garnish with sliced green onions.