Lightly grease the pan used for bakingTurn oven to 375 and place rack in center of oven.In a large bowl, mix the chicken, black beans, Rotel, corn (do not thaw), sour cream or cream cheese and 2 cups of the grated cheese.Divide into two- 9 inch pie plates or one 9x13 or similar size baking dish.Top with remaining grated cheese.Bake for 15-20 minutes (uncovered) or until bubbly and cheese is melted.Remove from oven, top with fresh cilantro, chopped green onions and chopped olives.Serve immediately.