Heat oven to 400°F. Spray 13x9-inch (3-quart) glass baking dish with cooking spray.
In 10-inch nonstick skillet, cook chicken over medium-high heat, stirring occasionally, until no longer pink in center. Stir in cream cheese and chiles; reduce heat to medium. Cook and stir until blended and cream cheese is melted.
Spoon chicken filling onto tortillas; roll up and place seam sides down in baking dish. Pour enchilada sauce over top; sprinkle with Cheddar cheese. Bake 15 to 20 minutes or until hot and cheese is melted.