Chile-Chicken Enchiladas

1 can (19 oz) enchilada sauce
2 cups diced cooked chicken
1 ½ cups shredded Monterey Jack cheese (6 oz.)
1 cup sour cream
1 can (4.5 oz) chopped green chiles
8 – 8 inch flour tortillas
1 cup shredded Cheddar cheese

Heat oven to 350°. Spray bottom of 13x9 inch (3 quart) glass baking dish with cooking spray. Spread ½ cup enchilada sauce in bottom of baking dish. In medium bowl, stir together chicken, Monterey Jack cheese, sour cream and chiles.
Spoon about 1/3 cup chicken mixture down center of each tortilla. Roll up tortillas; arrange, seam sides down, in baking dish. Top enchiladas with remaining enchilada sauce. Sprinkle with Cheddar cheese. Spray sheet of foil with cooking spray; cover baking dish with foil, sprayed side down.
Bake 35 minutes. Remove foil; bake 5 to 10 minutes longer or until hot and cheese is melted.
If desired, serve with avocado, green onions, lettuce, chopped tomato and additional sour cream.