Dinner

Firefighters Chicken Spaghetti Recipe

Name: Firefighters Chicken Spaghetti Recipe
Prep time: 20 min
Cook time: 50 min
Total time: 1 h 10 min
Cuisine: American
Ingredients: 12 ounces uncooked spaghetti, broken in half; 1 can (10-3/4 ounces) condensed cream of chicken soup, undiluted; 1 can (10-3/4 ounces) condensed cream of mushroom soup, undiluted; 1 cup sour cream; 1/2 cup whole milk; 1/4 cup butter, melted, divided; 2 tablespoons dried parsley flakes; 1/2 teaspoon garlic powder; 1/2 teaspoon salt; 1/4 teaspoon pepper; 2 cups shredded part-skim mozzarella cheese; 1 cup grated Parmesan cheese; 2 to 3 celery ribs, chopped; 1 medium onion, chopped; 1 can (4 ounces) mushroom stems and pieces, drained; 5 cups cubed cooked chicken; 1-1/2 cups crushed cornflakes

Bylina Carter November 28, 2025November 28, 2025

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Introduction

Firefighters Chicken Spaghetti is a creamy, comforting casserole that’s perfect for family dinners. Loaded with tender chicken, melted cheese, and a crunchy cornflake topping, this dish is both hearty and satisfying.

A baked casserole in a red rectangular dish with three clear layers: the bottom layer is creamy white sauce mixed with cooked white chicken pieces, the middle layer has pale golden-brown cooked thin noodles or shredded potatoes, and the top layer is a thick, crunchy, bright golden-orange crumb topping with small green herb sprinkles. A large silver spoon with a black handle rests inside the dish, scooping some casserole, showing the layers clearly. The dish sits on a white marbled surface with a white cloth napkin with thin black stripes on the right side. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

12 ounces uncooked spaghetti, broken in half
1 can (10-3/4 ounces) condensed cream of chicken soup, undiluted

1 can (10-3/4 ounces) condensed cream of mushroom soup, undiluted
1 cup sour cream

1/2 cup whole milk
1/4 cup butter, melted, divided

2 tablespoons dried parsley flakes
1/2 teaspoon garlic powder
1/2 teaspoon salt

1/4 teaspoon pepper
2 cups shredded part-skim mozzarella cheese
1 cup grated Parmesan cheese

2 to 3 celery ribs, chopped
1 medium onion, chopped
1 can (4 ounces) mushroom stems and pieces, drained

5 cups cubed cooked chicken
1-1/2 cups crushed cornflakes

Instructions

Step 1: Preheat your oven to 350°F (175°C). Cook the spaghetti according to the package directions until al dente, then drain well.

Step 2: In a large bowl, combine the cream of chicken soup, cream of mushroom soup, sour cream, milk, 2 tablespoons of melted butter, dried parsley, garlic powder, salt, and pepper. Stir in the mozzarella, Parmesan, chopped celery, onion, and drained mushrooms.
Step 3: Add the cooked chicken and spaghetti to the bowl and gently mix everything together until well combined.
Step 4: Transfer the mixture into a greased 3-quart baking dish. It will fill the dish completely.

Step 5: In a small bowl, combine the crushed cornflakes with the remaining melted butter. Sprinkle this mixture evenly over the top of the casserole.
Step 6: Bake uncovered for 45 to 50 minutes, or until the casserole is bubbly and the topping is golden brown.

Tips & Variations

Substitute cooked rotisserie chicken to save time without sacrificing flavor.

Add a pinch of crushed red pepper flakes for a subtle kick.
Swap out cornflakes with buttery breadcrumbs for a different crunchy topping.
Use low-fat sour cream to reduce calories without changing the creaminess much.

Storage

Store leftovers covered in the refrigerator for up to 3 days. Reheat individual portions in the microwave until warmed through, or reheat the entire casserole in a 350°F oven until hot and bubbly, about 20 minutes.

How to Serve

A white, rectangular baking dish holds a multi-layered casserole. The top layer is a golden brown, crunchy breadcrumb crust with small green herb bits sprinkled throughout. Below this is a creamy, white cheese layer mixed with shredded white onion strands. The bottom layer contains chunks of cooked chicken breast, visible through areas where the topping was scooped away by a large metal serving spoon with a black handle resting inside the dish. The dish is resting on a wooden surface with a white marbled texture alongside a white cloth napkin with black stripes. photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I make this casserole ahead of time?

Yes, you can assemble the casserole a day in advance and keep it covered in the refrigerator. Bake it just before serving, adding a few extra minutes to the baking time if needed.

Is it possible to freeze Firefighters Chicken Spaghetti?

You can freeze the fully assembled casserole before baking. Wrap it tightly and freeze for up to 2 months. Thaw overnight in the refrigerator before baking as directed.