Family Favorite Chicken Enchiladas

flour tortillas, regular, not burrito size* at room temperature

butter or margarine

chopped onion, I like sweet onions such as Walla Walla or Vidalia

coriander

garlic, minced

ground pepper

flour

sour cream regular or low or non fat

chicken broth

4 oz can chopped green chilies, not drained

grated colby-jack cheese, divided

chopped chicken

olives, mushrooms, tomatoes, green onion optional, for topping enchiladas