If you prefer to use store-bought canned cream of celery soup, simply use 2 cans of condensed soup + 2 cans of milk. Then add the sour cream, cumin, oregano and more salt.

I decided to modify this casserole to my taste. To the chicken and tortillas, I added a can of tomatoes and chilis, cream of celery soup, a heaping quarter cup of sour cream, hot sauce ...