Potluck Chicken Casserole

This is the church-supper, bring-a-dish-Sunday kind of casserole that holds its shape on a buffet line and still tastes like home an hour after it comes out of the oven. The base is cooked chicken and rice, bound in a mayo-enriched white sauce that stays creamy instead of drying out the way straight béchamel can.

Sautéed mushrooms, garlic, and onion form the flavor backbone, while celery, thawed peas, and diced pimientos bring color and bite. A splash of lemon juice at the end keeps the richness in check.

The real signature here is the buttered cornflake topping. As it bakes, it turns deep gold and shatters under a fork, giving you that diner-style crunch against the soft, saucy filling underneath.

Pro Tips

• Use rotisserie chicken to cut prep time significantly. Skin-on thigh meat will give you the most flavor if you have time to poach your own.
• Crush the cornflakes coarsely, not to dust. Big jagged flakes hold their crunch through the full bake.
• Let the casserole rest 10 minutes after it comes out. The sauce sets up and slices cleanly instead of running.

Variations

• Swap cornflakes for crushed Ritz crackers or panko for a different topping texture.
• Stir in a cup of sharp cheddar for a cheesier version.
• Use wild rice or brown rice in place of white for a nuttier, heartier base.