If you’re craving a dish that bursts with flavor, texture, and that unmistakable Southern charm, then you absolutely have to try this Spicy Southern Cheesy Chicken Spaghetti Casserole. It blends tender chunks of chicken with melty sharp cheddar and a kick of heat from cayenne pepper, all wrapped up in comforting spaghetti and a creamy sauce. This casserole is the perfect weeknight winner that brings everyone to the table, warming hearts and satisfying appetites in a truly unforgettable way.

Spicy Southern Cheesy Chicken Spaghetti Casserole Recipe - Recipe Image

Ingredients You’ll Need

This dish is a beautiful balance of simple yet bold ingredients that each play a vital role in creating the hearty, spicy, and cheesy goodness that defines the Spicy Southern Cheesy Chicken Spaghetti Casserole. From tender chicken to the zingy spices, every element shines through and complements the rest perfectly.

Boneless, skinless chicken breasts: The star protein that keeps the casserole hearty and filling, offering a mild flavor that soaks up spices perfectly.
Spaghetti: A classic pasta choice that provides the perfect base, holding onto the creamy sauce and cheesy layers beautifully.
Shredded sharp cheddar cheese: Adds rich, melty cheesiness with a sharp bite that elevates every forkful.
Fresh bell peppers: Chopped to give a sweet crunch and vibrant color contrast that brightens the casserole.
Cream of chicken soup: This canned favorite brings a creamy, velvety texture that makes the casserole irresistibly saucy.
Paprika: Offers smoky warmth and a subtle depth of flavor that enhances the spice profile.
Cayenne pepper: Packs the spicy punch that earns this casserole its bold Southern kick.
Garlic powder: Provides savory aroma and flavor that rounds out the seasoning perfectly.
Green onions: Fresh slices scattered on top bring a pop of color and a mild onion bite to finish it off beautifully.

How to Make Spicy Southern Cheesy Chicken Spaghetti Casserole

Step 1: Prep the Chicken

Start by trimming the chicken breasts and cutting them into bite-sized pieces. This ensures every scoop of the casserole is packed with tender, flavorful chicken that’s easy to eat and perfectly cooked through.

Step 2: Cook the Spaghetti

Boil your spaghetti until just al dente. Slightly undercooked pasta will finish cooking in the oven without getting mushy, so keep a close eye on the timing.

Step 3: Mix the Sauce and Spices

In a large bowl, combine the cream of chicken soup with paprika, cayenne pepper, and garlic powder. This blend will create the heart of your spicy, creamy sauce that ties everything together.

Step 4: Combine Ingredients

Gently toss the cooked spaghetti, chicken pieces, chopped bell peppers, and cheese into the sauce mixture. Mixing well ensures every strand and chunk is evenly coated with that luscious, spicy sauce.

Step 5: Bake the Casserole

Transfer your mixture into a greased casserole dish and bake at 350°F (175°C) for about 25-30 minutes. The cheese will melt into gooey perfection, and the edges will develop a tantalizing golden crust.

Step 6: Garnish and Serve

Once baked, sprinkle fresh green onion slices on top for that distinctive color and fresh lift, giving your Spicy Southern Cheesy Chicken Spaghetti Casserole a gorgeous finishing touch.

How to Serve Spicy Southern Cheesy Chicken Spaghetti Casserole

Garnishes

Fresh green onions add that perfect mild crunch and a pop of vibrant green that livens up the casserole. If you want to add an extra layer of flavor, try a sprinkle of crushed red pepper flakes, or a dollop of sour cream to cool the spice down just a bit.

Side Dishes

Because this casserole is rich and satisfying, pairing it with fresh, crisp sides works beautifully. Consider a simple green salad with a tangy vinaigrette, or roasted vegetables like asparagus or broccoli to add contrast with their lightness and earthiness.

Creative Ways to Present

If you’re hosting friends for dinner, try serving the Spicy Southern Cheesy Chicken Spaghetti Casserole in individual ramekins topped with extra cheese and a sprinkle of herbs. For family-style meals, a large rustic baking dish placed at the center invites everyone to dig in happily together.

Make Ahead and Storage

Storing Leftovers

Leftover Spicy Southern Cheesy Chicken Spaghetti Casserole keeps beautifully when stored in an airtight container in the refrigerator for up to four days. This makes it a fantastic option for meal prepping or enjoying delicious comfort food the next day.

Freezing

You can freeze the baked casserole in portions or as a whole. Make sure it’s completely cooled before wrapping tightly with foil or plastic wrap. Frozen leftovers will stay good for up to three months; just thaw overnight in the fridge before reheating.

Reheating

Reheat the casserole in the oven at 350°F (175°C) until warmed through, usually about 20 minutes. If you’re in a hurry, the microwave works fine too—cover the dish to keep moisture in and stir halfway through to heat evenly.

FAQs

Can I use rotisserie chicken instead of fresh chicken breasts?

Absolutely! Rotisserie chicken is a great shortcut that adds extra flavor and saves time. Just shred it and fold it into the casserole in step 4.

How spicy is the Spicy Southern Cheesy Chicken Spaghetti Casserole?

The heat is noticeable but balanced; the cayenne pepper brings a nice kick without being overpowering. You can adjust the amount to suit your spice tolerance perfectly.

Is it possible to make this casserole gluten-free?

Definitely! Substitute the spaghetti with your favorite gluten-free pasta. Just keep an eye on the cooking time, as gluten-free pasta can vary.

Can I add other vegetables to the casserole?

Sure! Bell peppers work great, but feel free to toss in some corn, diced tomatoes, or even spinach to boost the veggie content and add color.

What cheese can I use instead of sharp cheddar?

Cheddar has that perfect sharpness, but you can swap it with Monterey Jack, Pepper Jack for extra spice, or a blend of mozzarella and cheddar for a milder, creamier vibe.

Final Thoughts

This Spicy Southern Cheesy Chicken Spaghetti Casserole is truly one of those dishes that feels like a warm hug on a plate—rich, spicy, cheesy, and oh so satisfying. Whether you’re cooking for a crowd or just craving a comforting meal, this recipe brings a joyful Southern twist that’s sure to become a family favorite. Go ahead, dive in and enjoy every delicious bite!

Spicy Southern Cheesy Chicken Spaghetti Casserole Recipe

Print Recipe

★★★★★

5.1 from 30 reviews

A flavorful and comforting Spicy Southern Cheesy Chicken Spaghetti Casserole featuring tender chicken, sharp cheddar cheese, vibrant bell peppers, and a creamy, spicy sauce baked to perfection. This hearty casserole combines classic southern spices and creamy textures that make it perfect for family dinners or potlucks.

Author: Bella
Prep Time: 15 minutes
Cook Time: 45 minutes
Total Time: 1 hour
Yield: 6 servings 1x
Category: Casserole
Method: Baking
Cuisine: Southern American
Diet: Low Salt

Ingredients

Scale

Chicken and Pasta

3–4 boneless, skinless chicken breasts (about 1.5 lbs)
8 oz spaghetti

Cheese and Vegetables

2 cups shredded sharp cheddar cheese
1 cup fresh bell peppers, chopped (mix of red, green, or yellow)
1/4 cup green onions, sliced

Spices and Sauce

1 can (10.5 oz) cream of chicken soup
1 tsp paprika
1/2 tsp cayenne pepper
1 tsp garlic powder

Instructions

Cook the Chicken: In a large skillet over medium heat, cook the boneless, skinless chicken breasts until fully cooked and no longer pink inside, about 7-8 minutes per side depending on thickness. Once cooked, shred or dice the chicken into bite-sized pieces.
Boil the Spaghetti: Meanwhile, bring a large pot of salted water to a boil and cook the spaghetti according to package instructions until al dente, typically about 8-10 minutes. Drain and set aside.
Prepare the Sauce Mixture: In a large mixing bowl, combine the cream of chicken soup, paprika, cayenne pepper, garlic powder, and half of the shredded cheddar cheese. Stir well to integrate the spices and cheese into the sauce base.
Combine Ingredients: Add the cooked shredded chicken, drained spaghetti, chopped bell peppers, and sliced green onions into the sauce mixture. Fold everything gently to coat all ingredients evenly with the creamy sauce.
Assemble the Casserole: Preheat your oven to 350°F (175°C). Transfer the combined mixture into a greased 9×13 inch baking dish. Sprinkle the remaining cheddar cheese evenly on top.
Bake to Perfection: Place the casserole in the preheated oven and bake uncovered for 20-25 minutes or until the cheese is melted, bubbly, and slightly golden on top.
Serve: Remove from oven and let the casserole rest for 5 minutes before serving. This allows the flavors to meld and the casserole to set slightly for easier serving.

Notes

You can adjust the cayenne pepper to control the spice level according to your preference.
Use sharp cheddar cheese for the best flavor impact.
Bell peppers can be substituted with your favorite mild peppers or omitted if preferred.
For a lighter version, use reduced-fat cream of chicken soup and cheese.
This dish pairs well with a simple green salad or steamed vegetables.