Chicken Divan Casserole

Chicken Divan is a retro all-American casserole, and this updated version keeps what matters—velvety sauce, tender chicken, bright broccoli—while fixing the umami, texture, and freshness. The foundation is a mustard-scented béchamel built from real butter, flour, and half-and-half with chicken broth for savory depth; sharp cheddar folded in at the end gives the sauce a clean, tangy backbone instead of cloying heaviness. Poaching the breasts gently keeps the meat supremely tender and shreddable, and a quick blanch of the broccoli preserves its snap and vivid color so the casserole never feels mushy.

Texture is the hero here: a golden panko-and-cheddar crust provides the crisp contrast the classic often lacked, while a light squeeze of lemon or scattering of parsley at the table lifts the dish so it reads as homemade rather than dated. This recipe scales easily for a weeknight family dinner and makes a sturdy, crowd-pleasing dish to bring to potlucks—transport it partially assembled and finish baking on site for best results. Small adjustments—whole milk for a lighter finish, or gruyère for a nuttier flavor—allow you to tune richness without altering technique.