Go Back
Nixon Chicken

Nixon Chicken

Nixon Chicken is a creamy, cheesy casserole that combines tender shredded chicken and bright broccoli in a silky mushroom sauce. This easy weeknight dinner delivers comforting, family friendly flavor with minimal prep, perfect for potlucks or make ahead meals. Try it for its gooey cheddar cheese top and reheatable convenience, a persuasive reason to add it to your rotation.
Prep Time 10 minutes
Cook Time 45 minutes
Total Time 55 minutes
Course Dinner
Cuisine American
Servings 6 servings
Calories 350 kcal

Equipment

  • Casserole Dish
  • Large Bowl

Ingredients
  

  • 10.5 ounces cream of mushroom soup, (1 can) Adds creaminess and savory mushroom flavor while binding the casserole; provides moisture and helps create a smooth sauce when baked. Contributes a slightly salty, umami-rich base that complements the cheese and chicken, preventing dryness. Works as a convenient, ready-made creamy element to shorten prep time and ensure consistent texture.
  • 1/2 onion, finely diced Provides aromatic sweetness and mild pungency when finely diced; softens during cooking to blend into the creamy mixture. Adds subtle texture contrast and enhances overall savory depth without overpowering other flavors. Helps balance richness with a faint vegetal note.
  • 1 cup mayonnaise Imparts richness and a velvety mouthfeel while acting as an emulsifier to combine wet ingredients. Adds tang and fat that enhance flavor and keep the casserole moist during baking. Helps bind the mixture so slices hold together and improves overall creaminess.
  • 1.5 cups shredded cheddar cheese, divided Delivers sharp, savory flavor and gooey melted texture; use the divided amount to both mix in and top the dish for a golden crust. Adds saltiness and depth that complement the cream and chicken, making the casserole satisfying and rich. Melts to create a cohesive, cheesy layer that improves appearance and flavor contrast.
  • 2 eggs Provides structure and binding for the casserole, helping ingredients set as it cooks and slices cleanly when cooled slightly. Adds a touch of richness and stability so the mixture holds together rather than falling apart. Incorporates air when beaten, contributing to a lighter texture.
  • 3 cups shredded chicken, (I used rotisserie) Supplies the primary protein and hearty texture, offering savory flavor and substance to the dish; shredded form disperses evenly through the casserole. Acts as the main filling, absorbing flavors from the creamy sauce and cheese while keeping the dish filling and satisfying. Makes the recipe simple and quick when using pre-cooked rotisserie chicken.
  • 12 ounces frozen broccoli florets Contributes bright, vegetal notes and a tender bite while adding color and nutrition to the dish; frozen florets thaw and cook through within the casserole. Adds mild flavor and textural contrast that balances richness from the cream and cheese. Freezing preserves convenience and reduces prep time while incorporating a nutritious green vegetable.

Instructions
 

  • Preheat oven to 350˚F.: As you let the oven come to temperature you will notice a warm, dry scent in the kitchen that signals the air is ready to produce even browning. Preheating is essential because it ensures the casserole begins cooking immediately and the top can develop that inviting golden color. If you skip preheating, the dish may bake unevenly and the center can remain too soft while edges overbake. A common mistake is placing the dish into a cold oven, which lengthens overall cook time and alters texture. Make sure your oven rack is set to a middle position so heat circulates around the dish.
  • In a large bowl, combine the cream of mushroom soup, onion, mayonnaise, and eggs. Stir in the onion, 1 cup of the cheese, and the chicken until mixed.: As you stir, the mixture should look glossy and slightly thick, with the diced onion softened into the sauce and the eggs starting to bind everything together. The aroma will be savory, with mushroom notes rising from the cream of mushroom soup . Combining ingredients in a single bowl ensures even distribution, so each spoonful will have chicken , cheese , and sauce. If you overmix, the texture can become overly compact, so stir just until combined. Watch for lumps of mayo or unincorporated egg whites, and gently fold them in to maintain a smooth sauce. A frequent error is not breaking up the chicken enough, which leads to uneven bites; shred it finely so it disperses throughout the mixture.
  • In a 2 quart casserole dish (or 9×9 inch) spread the broccoli over the bottom of the dish. Pour the soup mixture over the broccoli. Then top with the remaining cheese.: Laying the broccoli first creates a bed that cooks into tender florets but keeps the top saucy rather than soggy. When you spoon the mixture, you will hear a gentle plop as the sauce settles over the greens, and visually the white sauce will contrast with the vivid green. Scatter the remaining cheese evenly to create a golden crust as it melts. If you pile the filling too thick in one spot, that section may remain undercooked, so spread everything evenly. Avoid using a dish that is too deep unless you adjust baking time, because a deeper pan will require longer cooking to set the center without burning the edges.
  • Bake 45-55 minutes or until the top is golden brown.: During baking the kitchen will fill with a toasty, cheesy aroma and you will likely hear gentle bubbling from the center as steam escapes. Look for the top to turn a warm golden brown and for bubbling around the edges, which indicate the interior has reached a hot, set temperature. The longer end of the time range will yield a slightly firmer filling and a more pronounced crust, while the shorter end keeps it creamier. A common mistake is removing the casserole too soon, leaving a liquid center; probe the middle with a spoon to check for gentle jiggle rather than runniness. If the top browns too quickly, tent loosely with foil to allow the center to continue cooking without burning the cheese. Let the casserole rest for a few minutes after baking so it firms up and slices cleanly.

Notes

  • Storage tip One easy way to store leftovers is to portion into airtight containers and refrigerate for up to four days, which keeps the casserole fresh and makes weekday meals a breeze.
  • Freezing method This casserole freezes well either before or after baking, but if freezing unbaked, wrap tightly and bake from thawed for best texture, otherwise the center may remain cold while the top overbrowns.
  • Reheating tip Reheat gently in the microwave in 30 second intervals, stirring between bursts, or cover with foil and warm in a 325 degrees F oven until heated through to preserve creaminess.
  • Scaling guidance To double the recipe, use a 9 by 13 inch dish or divide into two 2 quart dishes so the filling bakes evenly and stays moist.
  • Cheese placement Save some shredded cheddar cheese for the top so it forms a golden gratin, while cheese mixed inside ensures a melty interior.
Keyword cheesy chicken casserole, easy chicken broccoli bake, make ahead chicken dinner, Nixon Chicken casserole