Preheat the oven to 350°F In a small bowl, combine 2 cups shredded chicken, 1 cup of cheese, 1 (19-ounce) green chiles, salt, and pepper.
In a small skillet, bring 1 (4½-ounce) can enchilada sauce to a boil. Remove from heat.
Dip each tortilla into the heated sauce for a few seconds to soften.
Spoon ⅓ cup of chicken mixture and 2 tablespoons sour cream down the center for each tortilla
Roll the tortilla and place seam-side down in 8×8 (or 9×9) inch baking dish.
Repeat with remaining tortillas. Pour the remaining heated enchilada sauce over the top. Sprinkle with the remaining 1 cup of cheese.