Don't remember where this recipe came from, but I've been making it for years. Changed it up a little to suit our tastes as I do many recipes. Great for leftover turkey too. Can cut recipe in half if you want...just use an 8 X 8 baking dish but still use the full box of stuffing mix. Gives you more stuffing per serving which is always a good thing! Hope you enjoy it as much as we do!
Cook chicken breasts until tender (or use leftover chicken or turkey). Shred chicken using two forks or chop into small pieces. Melt butter in 9 X 13 baking dish. Place chicken on top of butter. Mix 2 cans Cream of Chicken soup with the milk. Stir in drained peas. Pour over chicken and butter mixture.
Mix boxed stuffing mix with the chicken broth. (I add a little chopped onion and celery in with the stuffing mix). Spread stuffing mixture over chicken mixture in baking dish. (If you like more stuffing, use 2 boxes stuffing mix and 2 cups chicken broth.)