Dinner

Chicken Spaghetti Casserole Recipe

Name: Chicken Spaghetti Casserole Recipe
Prep time: 30 min
Cook time: 45 min
Total time: 1 h 15 min
Cuisine: American
Ingredients: 2 cups cooked chicken, shredded; 3 cups uncooked spaghetti, broken into 2-inch pieces; 2 cans cream of mushroom soup; 1/4 cup finely diced green pepper; 1/4 cup finely diced onion; 1 (4-oz) jar diced pimentos, drained; 2 cups reserved chicken broth from pot; 1 tsp Lawry’s Seasoned Salt; 1/8 to 1/4 tsp cayenne pepper; Salt and pepper, to taste; 3 cups grated sharp cheddar cheese, divided (2 cups mixed in, 1 cup for topping)

Bymia larkspur March 28, 2026March 28, 2026

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Introduction

Chicken spaghetti is a comforting, cheesy casserole perfect for a cozy family dinner. Packed with tender chicken, spaghetti, and a creamy mushroom sauce, this dish is easy to prepare and always a crowd-pleaser.

A close-up of a baked noodle casserole in a rectangular white dish with red handles and white floral patterns on the sides. The casserole has a golden-yellow cheesy top layer with melted cheese, mixed with light brown shredded chicken pieces and small bits of green and red bell peppers scattered throughout. The bottom layer is a light cream color of noodles interwoven with chicken and vegetables, showing a dense and creamy texture. The dish sits on a pink cloth with white paisley patterns, placed on a white marbled surface, with colorful patterned bowls and glassware blurred softly in the background. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

2 cups cooked chicken
3 cups uncooked spaghetti, broken into two-inch pieces
2 cans cream of mushroom soup
3 cups grated sharp cheddar cheese
1/4 cup finely diced green pepper
1/4 cup finely diced onion
1 (4-oz.) jar diced pimentos, drained
2 cups reserved chicken broth from pot
1 teaspoon Lawry’s Seasoned Salt
1/8 to 1/4 teaspoon cayenne pepper
Salt and pepper, to taste

Instructions

Step 1: Cook one cut-up fryer chicken and pick out the meat to make two cups.
Step 2: Cook the spaghetti in the reserved chicken broth until al dente, being careful not to overcook. Once cooked, combine the spaghetti with the cooked chicken, cream of mushroom soup, 2 cups of cheddar cheese, green pepper, onion, diced pimentos, Lawry’s seasoned salt, cayenne pepper, salt, and pepper. Mix well.
Step 3: Place the mixture in a casserole pan and top with the remaining 1 cup of sharp cheddar cheese.
Step 4: Cover and bake at 350°F for 45 minutes until bubbly. If the cheese on top starts to brown too quickly, cover the casserole with foil to prevent burning.

Tips & Variations

For extra flavor, sauté the diced green pepper and onion before adding them to the mixture.
Add a teaspoon of garlic powder or minced fresh garlic for a savory boost.
Substitute cream of mushroom soup with cream of chicken soup if preferred.
Use rotisserie chicken to save time without sacrificing taste.

Storage

This casserole can be covered and refrigerated for up to two days before baking. It also freezes well for up to six months—wrap tightly to prevent freezer burn. To reheat, bake covered at 350°F until warmed through and bubbly, about 45 minutes if frozen, or less if thawed.

How to Serve

A white rectangular baking dish with a red floral pattern on the outside holds a baked noodle casserole. The casserole has one visible layer of creamy, cheesy noodles mixed with chunks of chicken and small bits of green peppers and red spices, creating a textured surface with shades of pale yellow, light brown, and hints of green and red. The noodles are lightly browned on top, giving a slightly crispy appearance. The dish is placed on a white marbled surface with a folded red patterned cloth underneath. In the background, there are stacked white bowls with colorful floral and dotted designs and a vase with a red flower, adding a warm and cozy feel to the scene. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use a different type of pasta?

Yes, feel free to substitute spaghetti with other pasta shapes like penne or rotini, but adjust the cooking time accordingly to maintain the right texture.

Is it possible to make this dish ahead of time?

Absolutely! You can assemble the casserole and refrigerate it for up to two days before baking, or freeze it for longer storage. Just be sure to bake thoroughly before serving.