This super simple and delicious chicken potato casserole is perfect to freeze ahead of time, then thaw and bake on nights when you just can't face the kitchen. This recipe is pure comfort food, best served on a cold winter night when sleet is ticking at the windows. You can use any kind of cooked cubed chicken for this recipe: chicken breasts or thighs or drumsticks or leftovers, too. This is a great casserole to make after thanksgivingjust substitute cubed cooked turkey for the chicken. You could also use any type of frozen vegetable. Frozen broccoli and peas would be delicious in this recipe, as would frozen shredded sweet potatoes in place of the regular hash brown potatoes. Serve this hearty and indulgent recipe with a green salad tossed with sliced mushrooms and tiny grape tomatoes, along with a spicy italian vinaigrette salad dressing. A glass of wine or iced tea completes the meal.