If you are craving a comforting, bold, and satisfying dish that packs a punch, the Spicy Southern Chicken Spaghetti Casserole Recipe will quickly become your new favorite go-to. This delightful casserole brings together tender shredded chicken, perfectly cooked spaghetti, creamy soups, and a blend of spices that give it that signature southern kick. The melted cheddar cheese on top adds richness and gooey goodness that makes each bite irresistible. Whether serving family or friends, this dish is pure southern comfort with just the right amount of heat to keep things exciting.

Ingredients You’ll Need
These ingredients are wonderfully simple yet crucial to creating the perfect balance of flavors, textures, and colors in your Spicy Southern Chicken Spaghetti Casserole Recipe. Each component plays a special role in bringing together that rich southern soul food vibe.
- 2 cups cooked chicken, shredded: Provides hearty protein and a tender bite that absorbs the spicy sauce beautifully.
- 12 oz spaghetti, cooked and drained: The comforting carb base that soaks up all the creamy, spicy goodness.
- 1 can (10.5 oz) cream of mushroom soup: Adds luscious creaminess with an earthy depth to the sauce.
- 1 can (10.5 oz) cream of chicken soup: Intensifies the chicken flavor and makes the casserole rich and velvety.
- 1 can (10 oz) diced tomatoes with green chilies: Brings tangy zest and a mild spicy kick that lifts the whole dish.
- 1 1/2 cups shredded cheddar cheese: Melts into a golden topping that adds sharpness and gooey texture.
- 1/2 cup chopped bell peppers (red or green): Adds a sweet crunch and vibrant color contrast that brightens the casserole.
- 1/2 cup chopped onion: Builds a savory foundation with a natural sweetness once sautéed.
- 1 tsp garlic powder: Infuses aromatic warmth that complements the spices perfectly.
- 1 tsp onion powder: Amplifies the onion flavor for depth without overpowering the dish.
- 1/2 tsp paprika: Contributes smoky undertones and a mild peppery sweetness.
- 1/4 tsp cayenne pepper: The secret weapon—adds just enough heat to awaken your taste buds.
- Salt and pepper to taste: Essential seasoning to balance and enhance all the other flavors.
- 2 tbsp butter: Used to sauté veggies, bringing richness and a velvety mouthfeel.
- Non-stick cooking spray: Keeps your casserole from sticking and makes cleanup a breeze.
How to Make Spicy Southern Chicken Spaghetti Casserole Recipe
Step 1: Prepare Your Baking Dish and Oven
Start by preheating your oven to 350°F (175°C). It’s important to get the temperature just right to ensure the casserole cooks evenly and that delicious cheesy top turns golden and bubbly. Grease a 9×13-inch baking dish with non-stick cooking spray to keep your casserole from sticking and to make serving easier.
Step 2: Sauté the Onions and Bell Peppers
In a large skillet, melt the butter over medium heat to provide a rich base for the vegetables. Add the chopped onions and bell peppers and sauté until they soften, about five minutes. This step releases the natural sweetness and creates a tender, flavorful vegetable mix that complements the creamy chicken sauce perfectly.
Step 3: Combine the Sauces, Chicken, and Spices
In a large mixing bowl, toss together your shredded cooked chicken, sautéed onions and peppers, cream of mushroom soup, cream of chicken soup, and the spicy diced tomatoes with green chilies. Add the garlic powder, onion powder, paprika, cayenne pepper, salt, and pepper. Mix everything thoroughly to create a rich, spicy southern flavor that embodies the heart of this casserole.
Step 4: Fold in the Cooked Spaghetti
Gently fold the cooked and drained spaghetti into the mixture to ensure each strand is coated with the creamy, savory sauce. This step is key for distributing flavor evenly so that from the first forkful to the last, every bite tastes balanced and harmonious.
Step 5: Assemble and Add Cheese
Transfer the combined mixture into your prepared baking dish. Sprinkle the shredded cheddar cheese generously over the top. This doesn’t just add flavor; the melting cheese creates that irresistible golden crust that’s a comforting hallmark of a great southern casserole.
Step 6: Bake Until Bubbly and Golden
Pop your casserole into the oven and bake for 25 to 30 minutes. You’ll know it’s done when the cheese is melted, bubbling, and slightly golden on top, signaling that all the layers have melded together into pure deliciousness.
Step 7: Rest Before Serving
Let the dish stand for a few minutes once out of the oven. This resting time allows the casserole to set a bit, making it easier to serve and letting those spicy, creamy flavors settle into the chicken and pasta for maximum taste impact.
How to Serve Spicy Southern Chicken Spaghetti Casserole Recipe

Garnishes
To elevate your Spicy Southern Chicken Spaghetti Casserole Recipe even further, garnish with freshly chopped green onions or a sprinkle of extra shredded cheddar cheese. A few slices of fresh jalapeño or a dollop of sour cream can add a fun, fresh contrast while cooling down the spice level for picky eaters.
Side Dishes
This casserole is a full meal in itself but pairs beautifully with light, crisp sides. Consider a simple green salad with a tangy vinaigrette to cut through the richness. For a true southern feast, serve alongside buttery cornbread or roasted vegetables for added texture and nutrients.
Creative Ways to Present
For gatherings, serve the casserole in individual ramekins topped with a little extra cheese and a sprinkle of paprika for a charming, personalized presentation. You can also layer it with breadcrumbs before baking for an added crunchy topping that adds a delightful contrast to the creamy layers beneath.
Make Ahead and Storage
Storing Leftovers
Store your leftover Spicy Southern Chicken Spaghetti Casserole Recipe in an airtight container in the refrigerator for up to 3 days. The flavors meld wonderfully overnight, making the leftovers taste even better the next day.
Freezing
This casserole freezes beautifully. Allow it to cool completely, then wrap tightly in plastic wrap and aluminum foil or place in a freezer-safe container. It will keep well for up to 3 months—perfect for meal prepping or busy days when you want delicious home-cooked comfort without the fuss.
Reheating
Reheat leftovers in a preheated oven at 350°F (175°C) for about 20 minutes or until warmed through and the cheese is melty again. Alternatively, microwave single servings covered loosely for 2 to 3 minutes, stirring halfway to ensure even heating.
FAQs
Can I use canned chicken instead of cooked chicken?
Absolutely! Canned chicken can be a convenient substitute, but be mindful of draining it well so your casserole doesn’t become too watery. For best texture, shredding freshly cooked chicken is ideal.
Is there a way to make this recipe less spicy?
Yes, simply reduce or omit the cayenne pepper and choose diced tomatoes without green chilies. You can always add hot sauce at the table for those who want extra heat.
Can I substitute the spaghetti with another pasta?
Definitely. Any pasta shape that holds sauce well, like penne, rotini, or elbow macaroni, will work. Adjust cooking times accordingly to keep the pasta firm but tender.
What can I add to make this casserole more filling?
Adding cooked vegetables such as mushrooms, zucchini, or spinach can bulk up this dish with extra nutrition and flavor without overpowering the spicy southern charm.
Is this casserole good for meal prep?
Yes, it’s perfect for meal prep! It keeps well in the fridge and freezer and can be portioned out for lunches or dinners throughout the week, making mealtime convenient and delicious.
Final Thoughts
There is something truly special about the Spicy Southern Chicken Spaghetti Casserole Recipe that makes any meal feel like a cozy southern celebration. The perfect marriage of creamy, spicy, and cheesy comfort is waiting for you to try, so don’t hesitate. Whip up this soul-satisfying dish and enjoy the warmth and joy it brings to your table and your heart.
