* Two (10 3/4-oz.) cans condensed cream of chicken soup (undiluted) can be substituted for the White Sauce.
** Recipe can be prepared to this point, covered and refrigerated up to 24 hours. Sprinkle casserole with Parmesan cheese and parsley flakes; cover tightly with foil. Bake at 350°F. for 60 minutes. Uncover; bake an additional 15 to 20 minutes or until casserole is thoroughly heated.
White sauce, the basis for a host of dishes, has a classic formula of 2 tablespoons or butter (or other fat) and 2 tablespoons of flour per cup of milk.
Prepare both the white rice and the wild rice ahead of time (or use leftovers from a previous meal) and store them in the refrigerator or the freezer until you're ready to complete the casserole.