Preheat oven to 375°F (190°C) and lightly grease a 9x13 inch baking dish.
In a medium bowl, combine the shredded chicken, 1 cup of the cheese, and 1/4 cup of the enchilada sauce.
Warm the corn tortillas in a microwave or on a skillet until pliable.
Place approximately 1/4 cup of the chicken mixture in the center of each tortilla.
Roll the tortillas tightly and place them seam-side down in the prepared baking dish.
Pour the remaining enchilada sauce evenly over the top of the rolled tortillas.
Sprinkle the remaining 1 cup of cheese over the sauce.
Bake for 20 to 25 minutes until the cheese is melted and bubbling.
Garnish with diced onions and fresh cilantro before serving.