f there was ever a dish that could bring a family running to the dinner table, it’s chicken spaghetti.

Growing up in the South, casseroles were a staple. They showed up at family gatherings, church potlucks, weeknight dinners, and just about every celebration in between. Chicken spaghetti has always been one of those comforting recipes that feels like a warm hug after a long day.

If you love my easy one pan recipes, check out my other comfort food favorites Chicken Broccoli Rice Casserole and Breakfast Croissant Casserole Bake

Moreover, This version takes everything I love about classic chicken spaghetti and gives it a little upgrade. We’re using tender shredded chicken, colorful peppers, Rotel tomatoes, a rich homemade cheese sauce, and plenty of flavor from Bayou City Seasonings. The result is creamy, cheesy, packed with flavor, and guaranteed to become a family favorite.

Whether you’re feeding a crowd, meal prepping for the week, or just looking for a cozy dinner recipe, this Ultimate Creamy Chicken Spaghetti delivers every single time.

Why You’ll Love This Chicken Spaghetti

There are a few key things that make this the best Chicken Spaghetti:

Rich, creamy homemade cheese sauce

Packed with tender shredded chicken

Easy enough for a weeknight dinner

Perfect for meal prep and leftovers

Freezer-friendly

Family-approved comfort food

Loaded with cheesy goodness in every bite

Ingredients for the Best Chicken Spaghetti

spaghetti
rotisserie chicken, shredded
butter
olive oil
onion
red bell pepper
poblano pepper
garlic
all-purpose flour
chicken stock
heavy cream
cream cheese
Rotel tomatoes
Seasonings
velvet, cheddar, mozzarella, parmesan

How To Make Chicken Spaghetti

Preheat your oven to 325°F. Grease or line a loaf pan with parchment paper.
Mix Wet Ingredients: In a large bowl, combine, Mashed bananas, White sugar, Brown sugar, Vegetable oil, Brown butter, eggs, vanilla extract, Whisk until smooth and fully combined.
Combine Dry Ingredients: In a separate bowl, whisk together Flour, Baking soda, Salt, Cinnamon
Add the dry ingredients into the wet mixture and gently mix until just combined. Fold in: Chopped walnuts and Sour cream (if using). ⚠️ Do not overmix—this is key to keeping your banana bread soft and tender.
Pour the batter into your prepared loaf pan and top with extra walnuts if you like.
Bake at 325°F for 70 minutes, or until a toothpick inserted in the center comes out clean.
Let the bread cool in the pan for 10–15 minutes, then transfer to a wire rack to cool completely before slicing.

Tips for the Best Chicken Spaghetti

Don’t Overcook the Pasta
Use Freshly Shredded Cheese
Rotisserie Chicken Is Your Best Friend

Make Ahead Instructions

This recipe can be assembled up to 24 hours in advance.

Cover tightly and refrigerate until ready to bake.

When baking from the refrigerator, add an additional 10 to 15 minutes to the baking time.

Storage and Freezing Instructions

Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat in the microwave or oven until warmed through.

Chicken spaghetti freezes beautifully. Allow the casserole to cool completely, then wrap tightly in plastic wrap and foil. Freeze for up to 3 months. Thaw overnight in the refrigerator before reheating.

Variations You Can Try

Spicy Chicken Spaghetti
Add diced jalapeños and a pinch of cayenne pepper.
Buffalo Chicken Spaghetti
Stir in ¼ cup buffalo sauce and top with crumbled blue cheese.
Cajun Chicken Spaghetti
Add sautéed andouille sausage and extra Cajun seasoning for a Louisiana-inspired twist.

Frequently Asked Questions

Can I use a different pasta?

Absolutely. Linguine, fettuccine, penne, or rotini all work well.

Can I make this without Velveeta?

Yes. You can replace it with additional cheddar and mozzarella, although Velveeta helps create an extra creamy texture.

Can I make this ahead of time?

Yes. Assemble the casserole up to a day in advance and bake when ready to serve.

Why is my chicken spaghetti dry?

The mixture likely didn’t have enough sauce before baking. Make sure it looks slightly loose before transferring it to the casserole dish.

Also, Make sure to tag me on Instagram, TikTok, or Facebook when you make this recipe! I want to see your creation and give you a shoutout!

This recipe combines everything we love about Southern cooking—simple ingredients, bold flavor, and plenty of cheese—into one unforgettable dish. It’s perfect for busy weeknights, Sunday dinners, meal prep, and sharing with the

If you make this, tag me—I already know y’all about to go crazy with this one 🔥

For added flavor, try my Bayou City Seasonings. Hand crafted for a full experience and taste of what’s cooking in my kitchen, you have to try my seasonings! Guaranteed to satisfy your taste buds.

Ultimate Creamy Chicken Spaghetti

This Ultimate Creamy Chicken Spaghetti combines tender shredded chicken, Rotel tomatoes, colorful peppers, and a rich three-cheese sauce for the ultimate Southern comfort food casserole. Perfect for family dinners, meal prep, potlucks, and freezer meals.

Print Recipe Pin Recipe

Prep Time 20

Cook Time 6

Total Time 26

Servings: 8 people

Course: Main Course

Cuisine: American, Southern

Calories: 690

Ingredients Method Notes

Ingredients

For the Pasta:

1 lb spaghetti pasta
water for boiling
1 tbsp sea salt

For Chicken

1 rotisserie chicken, shredded about 4 cups

For the Vegetable Base:

1 tablespoon butter
1 tablespoon olive oil
1 medium yellow onion diced
1 red bell pepper diced
1 poblano pepper diced
5 garlic cloves minced

For the Cheese Sauce:

3 tablespoons butter
3 tablespoons all-purpose flour
2 cups chicken stock
1 cup heavy cream
8 ounces cream cheese softened
1 10-ounce can Rotel, drained
1 teaspoon Bayou City All Purpose Seasoning
1 teaspoon Bayou City Garlic Pepper
½ teaspoon smoked paprika
½ teaspoon Cajun seasoning
½ teaspoon black pepper

For the Cheese Blend:

8 ounces Velveeta cubed
1½ cups sharp cheddar cheese shredded
1 cup mozzarella cheese shredded
½ cup parmesan cheese grated

For Topping:

1 cup sharp cheddar cheese shredded
½ cup mozzarella cheese shredded
¼ cup parmesan cheese grated
¼ cup buttery crackers crushed (optional)
Chopped parsley for garnish

Method

Preheat oven to 375°F. Grease a 9×13 baking dish and set aside.
Bring a large pot of salted water to a boil. Cook spaghetti until just under al dente according to package directions. Reserve 1 cup of pasta water, then drain.
In a large Dutch oven or heavy-bottomed pot, heat 1 tablespoon butter and olive oil over medium heat.
Add onion, bell pepper, and poblano pepper. Cook for 5-6 minutes until softened.
Add garlic and cook for 30 seconds until fragrant.
Add 3 tablespoons butter and allow it to melt. Sprinkle in flour and whisk continuously for 1 minute.
Slowly whisk in chicken stock until smooth. Add heavy cream and continue whisking.
Reduce heat to low and stir in cream cheese, Velveeta, Rotel, Bayou City All Purpose Seasoning, Bayou City Garlic Pepper, smoked paprika, Cajun seasoning, and black pepper.
Stir until cheeses are completely melted and the sauce is smooth.
Add shredded chicken and stir to combine.
Add cheddar cheese, mozzarella cheese, and parmesan cheese. Stir until melted.
Fold in cooked spaghetti. If needed, add a splash of reserved pasta water to loosen the sauce.
Transfer mixture to prepared baking dish.
Top with remaining cheddar, mozzarella, parmesan, and crushed crackers if using.
Bake for 20-25 minutes until bubbly and golden.
Broil for 1-2 minutes for additional browning if desired.
Garnish with chopped parsley and serve warm.

Notes

Slightly undercook the spaghetti to prevent a mushy casserole.
Freshly shredded cheese melts better than pre-shredded cheese.
Rotisserie chicken adds extra flavor and saves time.
The poblano pepper adds subtle smoky flavor without making the dish spicy.
For a spicier version, add diced jalapeños or cayenne pepper.
This recipe can be assembled up to 24 hours ahead and refrigerated before baking.