Chicken Spaghetti is a comforting, family-friendly casserole made with tender chicken, spaghetti, and a creamy cheese sauce. This easy recipe yields a warm, cheesy dish that’s perfect for busy weeknights and is often a hit with picky eaters.
What is Chicken Spaghetti?
Chicken spaghetti is a baked pasta casserole made with cooked chicken, spaghetti noodles, and a creamy, cheesy sauce. The dish is typically finished in the oven so flavors meld and the top becomes bubbling and golden. It’s an adaptable, satisfying meal that works well for family dinners and potlucks.
How to Make Chicken Spaghetti
This version avoids canned cream soups and uses real ingredients to create a smooth, homemade sauce. The method is straightforward and produces a rich, flavorful casserole. Have the following ingredients ready before you start.
Ingredients for Chicken Spaghetti
- ¼ cup unsalted butter
- 1 yellow bell pepper, diced small
- 1 red bell pepper, diced small
- 1 small onion, diced small
- 3 cloves garlic, minced
- 3 tablespoons all-purpose flour
- 2 cups chicken broth
- 1 cup half and half
- ¾ cup parmesan cheese, grated
- 1 tablespoon fresh chopped parsley
- 1 rotisserie chicken (about 3 cups), shredded and cut into small pieces
- ½ of a 16-ounce package spaghetti
- 1 cup sharp cheddar cheese, shredded
- Extra parsley for garnish (optional)
- Salt and black pepper to taste
Step-by-Step Instructions
Step One: Preheat the oven to 350°F (175°C) so the casserole bakes evenly.
Step Two: Cook the spaghetti according to the package directions until al dente. Drain and toss with a little olive oil or butter to prevent sticking. Set aside.
Step Three: In a large skillet over medium heat, melt the butter. Add the diced bell peppers, onion, and garlic and sauté for 3–5 minutes until the vegetables soften, stirring occasionally.
Step Four: Sprinkle in the flour and cook for about 1 minute to remove the raw flour taste and begin thickening. Gradually stir in the chicken broth, bringing the mixture to a gentle boil while stirring to avoid lumps.
Step Five: Whisk in the half and half and bring back to a boil. Stir in the grated parmesan and chopped parsley until the sauce is smooth. Remove from heat.
Step Six: Add the shredded rotisserie chicken and cooked spaghetti to the sauce, tossing to coat evenly.
Step Seven: Transfer the mixture to a greased casserole dish and spread it into an even layer.
Step Eight: Bake in the preheated oven for 18–20 minutes to heat through and meld flavors.
Step Nine: Sprinkle the shredded sharp cheddar over the top and return to the oven for 3–5 minutes, until the cheese is melted and bubbly. Garnish with extra parsley if desired and serve hot.
Substitutions and Variations
- Chicken: Use cooked boneless, skinless chicken breasts or leftover chicken if you don’t have rotisserie.
- Pasta: Thin spaghetti works well, but you can substitute other long or short pasta shapes.
- Cheese: Try Monterey Jack, extra parmesan, or a blend for a different flavor profile.
- Vegetables: Add mushrooms or green bell pepper for extra texture and taste.
- Seasoning: Boost flavor with Italian seasoning, garlic powder, onion powder, or a pinch of chili powder.
Best Tips
- Freshly grated cheese: Melts better than pre-shredded and improves texture.
- Al dente pasta: Cook pasta slightly firm since it continues to cook in the oven.
- Sauce consistency: If the sauce thickens too much, thin it with a splash more chicken broth.
How to Store Cheesy Chicken Spaghetti
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave until warmed through. If the sauce separates slightly after refrigeration, stir in a little milk or cream while reheating to restore a smooth texture.
Frequently Asked Questions
Can I make chicken spaghetti ahead of time?
Yes. Assemble the casserole in a greased 9×13 dish, cover and refrigerate. Bake when ready to serve. This makes it convenient for prepping meals in advance.
Is chicken spaghetti healthy?
As a comfort food, it’s richer than a plain chicken-and-vegetable dish, but you can lighten it by using whole wheat pasta, low-fat cheese, and adding more vegetables.
Can I use raw chicken breasts instead of rotisserie chicken?
Yes. Cook and shred or dice the chicken thoroughly before adding it to the sauce. Season the chicken while cooking to build more flavor.
How can I make my chicken spaghetti more flavorful?
Add extra seasonings like Italian seasoning, garlic powder, or a pinch of chili powder. Fresh herbs such as basil or extra parsley also brighten the dish.
What can I serve with chicken spaghetti?
A simple green salad and garlic bread or crusty rolls are classic, complementary sides that round out the meal.
Can I Freeze Chicken Spaghetti?
Freezing is possible, but dairy-based sauces can change texture after freezing and thawing. Cool the casserole completely, then portion into freezer-safe containers. Thaw in the refrigerator before reheating. Reheat slowly and stir frequently; adding a splash of cream or milk while reheating can help restore a smooth sauce. Sauces thickened with flour or cornstarch typically freeze and reheat better, but expect a slight difference in texture compared to freshly baked.
Enjoy!
Chicken spaghetti is an excellent, crowd-pleasing meal for weeknights, gatherings, or anytime you want a hearty, satisfying dish. The creamy sauce, tender chicken, and melted cheese combine for a comforting casserole that’s easy to make and easy to love.
More Delicious Dinner Ideas
- Ground Turkey Vegetable Soup
- Ground Turkey Stuffed Peppers
- Mexican Tater Tot Casserole
- Old Fashioned Goulash
Chicken Spaghetti
Ingredients
- ¼ cup unsalted butter
- 1 yellow bell pepper diced small
- 1 red bell pepper diced small
- 1 small onion diced small
- 3 clove garlic minced
- 3 tablespoons all-purpose flour
- 2 cups chicken broth
- 1 cup half and half
- ¾ cups parmesan cheese grated
- 1 tablespoon fresh chopped parsley
- 1 rotisserie chicken about 3 cups, shredded and cut into small pieces
- ½ a 16-ounce package spaghetti
- 1 cup sharp cheddar cheese shredded
- extra parsley for garnish optional
- salt and pepper to taste
Instructions
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Preheat oven to 350 degrees.
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Cook spaghetti according to package directions. Drain and toss with a little oil or butter; set aside.
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In a 12-inch skillet over medium heat melt the butter. Add the peppers, onion, and garlic and cook 3–5 minutes until tender. Stir in the flour and cook about 1 minute. Add the chicken broth and bring to a boil while stirring. Whisk in the half and half and bring to a boil, then stir in the parmesan and parsley. Remove from heat.
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Stir in the chicken and pasta, transfer to a casserole dish, and bake 18–20 minutes. Top with cheddar and bake 3–5 minutes more until melted. Garnish with parsley if desired.