For Jean in NC I'm so sorry I mis-read your request for the King Ranch Chicken recipe. Oh well, maybe another reader will enjoy the recipe I just sent . I hope this one is more like the one you  were requesting.
Grannygirl in Ohio.

Ranch Chicken

1 (8oz) pkg. macaroni, cooked, drained and kept warm
1/2 stick butter, melted
1 can cream of chicken soup
1 (1 oz.) pkg. ranch salad dressing mix
2 (15 oz.) cans peas and carrots, drained
3 cups cooked , cubed chicken
1 (2.8 oz.) can french-fried onion rings

Combine butter, soup, dressing mix, peas and carrots in saucepan. Stir occasionally over medium heat until all ingredients mix well and are thoroughly heated. Toss with cooked pasta and chicken and spoon into sprayed 3-quart baking dish. Cover and bake for 15 minutes. Remove from oven, sprinkle onion rings over top and bake uncovered for 15 minutes. Serves 10-12.
Grannygirl in Ohio

http://www.nancyskitchen.com