In 12-inch skillet, place hot water, milk, seasoning mix and uncooked pasta (from Ultimate Chicken Helper box). Heat to boiling over medium-high heat, stirring occasionally.
Reduce heat. Cover; simmer 6 minutes, stirring occasionally.
Stir in frozen corn, black beans and chicken. Return to boiling; reduce heat. Cover; simmer 5 to 7 minutes longer or until pasta and vegetables are tender. Remove from heat. Stir in creamy Cheddar cheese sauce (from Ultimate Chicken Helper box) until well mixed; stir in tomato and 3 tablespoons of the cilantro. Cook until hot. Sprinkle with remaining cilantro. Serve with lime wedges.