Fry onions and chilies together in the butter. Add soups and broth to the onions and chilies. Set aside. Tear apart 4 tortillas per layer. Begin with sauce on the bottom of a deep casserole dish.

Then add a layer of tortillas, more sauce, chicken and then cheese. Continue with layering tortillas, sauce, chicken and cheese until the casserole is filled. Bake for 30 minutes at 350 degrees.