In a mixing bowl, combine the cream of mushroom soup and water, blend well.
Reserve half of the chow mein noodles for the top of the casserole.
Add the remaining noodles to the soup mixture along with diced chicken, celery, cashew nuts, chopped onion, and a dash of pepper.
Toss lightly until evenly combined.
Transfer the mixture into a baking dish.
Sprinkle the reserved chow mein noodles evenly over the top of the casserole.
Bake in the preheated oven for 20-25 minutes, or until the top is golden brown and the casserole is bubbly.
Remove from the oven and let it cool for a few minutes before serving.
Notes / Tips / Wine Advice:
Wine Advice:
This creamy and nutty casserole pairs well with a crisp Chardonnay or a light-bodied Pinot Gris. The acidity of these wines balances the richness of the dish, while their fruity notes complement the flavors of the chicken and mushrooms.