In a large mixing bowl, combine the diced chicken, diced celery, mayonnaise, cream of mushroom soup, chopped pimiento, sliced water chestnuts, salt, chopped onion, and lemon juice.
Mix well until all ingredients are well-blended.
Pour the mixture into the prepared baking pan, spreading it evenly.
Sprinkle the grated cheese evenly over the top.
Top with the crushed potato chips and slivered almonds.
Bake in the preheated oven for 30 minutes, or until the casserole is bubbly and the top is golden brown.
Serve hot.
Notes / Tips / Wine Advice:
Serving Tip:Pair with a side of green vegetables or a light salad for a well-rounded meal.Wine Advice:Pair with a light-bodied Chardonnay or a crisp Sauvignon Blanc to complement the richness of the casserole.