Mouthwatering Spicy Southern Cheesy Chicken Spaghetti Casserole
Last spring during our town’s Easter festival, I hosted a family dinner that grew bigger than I had planned. Cousins brought their kids, my parents showed up with baskets of dyed eggs, and suddenly I had nearly twenty hungry people filling up my living room.
That night, I realized how much I love making food that can stretch, comfort, and please a crowd without leaving me frazzled in the kitchen. I needed something hearty, creamy, and packed with flavor—something that felt like a hug on a plate.
That’s when I thought of making this Spicy Southern Cheesy Chicken Spaghetti Casserole. It has everything I love about Southern comfort cooking: tender chicken, creamy sauce, melty cheese, and just enough spice to wake up your taste buds. It’s the kind of dish that makes people linger around the table, sneaking in seconds even after claiming they’re full.
When I pulled that golden, bubbling casserole out of the oven, everyone’s chatter stopped, and the first spoonfuls disappeared faster than I could blink. That’s when I knew this recipe had a permanent spot in my family’s collection of “celebration dishes.”

Short Description
A comforting Southern-style casserole layered with tender chicken, creamy sauce, spaghetti, and gooey cheddar, all with a spicy kick. Perfect for feeding a crowd or making ahead for busy nights.
Key Ingredients
- 3–4 boneless, skinless chicken breasts (about 1½ lbs)
- 8 oz spaghetti
- 2 cups shredded sharp cheddar cheese
- 1 cup fresh bell peppers, chopped
- 1 can (10.5 oz) cream of chicken soup
- 1 tsp paprika
- ½ tsp cayenne pepper
- 1 tsp garlic powder
- ¼ cup green onions, sliced
Tools Needed
- Large pot for boiling pasta
- Medium skillet or sauté pan
- Cutting board and sharp knife
- Mixing bowls
- Casserole dish (9×13 works best)
- Whisk or wooden spoon
Cooking Instructions
Step 1: Preheat the Oven
Preheat oven to 350°F (175°C). Grease a 9×13 casserole dish with butter or cooking spray.
Step 2: Cook the Chicken
Heat a skillet over medium heat, add a drizzle of oil, and cook chicken breasts for 6–7 minutes per side until golden and cooked through. Let rest for 5 minutes, then shred into bite-sized pieces.
Step 3: Cook the Spaghetti
Bring a large pot of salted water to a boil. Cook spaghetti until al dente, about 8–10 minutes. Drain well and set aside.
Step 4: Mix the Filling
In a large mixing bowl, combine shredded chicken, cooked spaghetti, cream of chicken soup, chopped bell peppers, paprika, cayenne, garlic powder, and half of the shredded cheddar. Stir until everything is evenly coated.
Step 5: Assemble the Casserole
Spread the mixture into the greased casserole dish. Sprinkle the remaining cheddar evenly over the top.
Step 6: Bake Until Golden
Bake uncovered for 25–30 minutes until the cheese is bubbly and golden brown.
Step 7: Garnish and Serve
Remove from the oven and let rest for 5 minutes. Garnish with sliced green onions before serving.
Tip: If your casserole looks dry before baking, add a splash of chicken broth to keep it moist.
Why You’ll Love This Recipe
Comfort Food Classic: Creamy, cheesy, and full of flavor.
Family-Friendly: Appeals to both kids and adults.
Make-Ahead Friendly: Assemble ahead and bake when needed.
Spicy Kick: Paprika and cayenne give it a subtle heat.
Crowd Pleaser: Perfect for gatherings, potlucks, and family dinners.
Mistakes to Avoid & Solutions
Overcooking pasta: Al dente pasta is key, since it continues to cook in the oven.
Dry casserole: If the mixture looks too thick before baking, stir in ¼ cup chicken broth.
Uneven cooking: Cut chicken into similar sizes for even cooking and shredding.
Too spicy for kids: Reduce cayenne pepper to ¼ tsp or omit completely.
Cheese clumping: Mix half into the filling and reserve half for topping so it melts evenly.
Serving and Pairing Suggestions
Serve as a main dish with a crisp green salad on the side.
Pair with roasted vegetables or cornbread for a Southern touch.
Works beautifully for buffet-style gatherings since it stays warm and creamy.
Storage and Reheating Tips
Store leftovers in an airtight container in the refrigerator for up to 4 days.
Reheat in the oven at 325°F covered with foil until warmed through.
Microwave individual portions with a splash of milk to prevent drying.
Freeze before baking for up to 2 months. Thaw overnight in the fridge before baking.
FAQs
1. Can I use rotisserie chicken instead of cooking chicken breasts?
Yes, shredded rotisserie chicken is a great shortcut.
2. Can I swap spaghetti for another pasta?
Absolutely. Penne or rotini work well and hold sauce nicely.
3. Can this dish be made vegetarian?
Yes, substitute the chicken with sautéed mushrooms or chickpeas, and use cream of mushroom soup.
4. How do I make it creamier?
Add ½ cup sour cream or cream cheese to the filling mixture.
5. Can I make this less spicy?
Yes, just reduce or remove the cayenne pepper while keeping the paprika for color and mild flavor.
Tips & Tricks
Use colorful bell peppers for a pretty presentation.
Always let the casserole rest for 5 minutes after baking—it helps the flavors settle.
Shred your own cheddar cheese for the best melt and flavor.
Add jalapeños or hot sauce for extra heat if you love it spicy.
Recipe Variations
Tex-Mex Twist: Add a can of Rotel tomatoes, swap cheddar for Monterey Jack, and sprinkle crushed tortilla chips on top.
Creamier Version: Stir in ½ cup sour cream or cream cheese for a richer filling.
Vegetable Boost: Add zucchini, spinach, or corn for extra nutrition.
BBQ Style: Replace cream of chicken soup with a mix of BBQ sauce and sour cream, and top with smoked gouda cheese.
Final Thoughts
This Spicy Southern Cheesy Chicken Spaghetti Casserole is more than just a dinner—it’s a memory-maker. It’s the dish that brings laughter around the table and warmth to any gathering. The combination of creamy sauce, tender chicken, and just the right amount of spice makes it impossible to resist.
Every time I serve it, I see the same thing happen: plates scraped clean and requests for seconds. That’s when you know you’ve found a recipe worth keeping. If your kitchen is a place where family and friends gather, this casserole will quickly become a staple—filling bellies, warming hearts, and sparking conversations long after the last bite is gone.
Mouthwatering Spicy Southern Cheesy Chicken Spaghetti Casserole
Course: Main CourseDifficulty: Easy6
servings20
minutes35
minutesA comforting Southern-style casserole layered with tender chicken, creamy sauce, spaghetti, and gooey cheddar, all with a spicy kick. Perfect for feeding a crowd or making ahead for busy nights.
Ingredients
3–4 boneless, skinless chicken breasts (about 1½ lbs)
8 oz spaghetti
2 cups shredded sharp cheddar cheese
1 cup fresh bell peppers, chopped
1 can (10.5 oz) cream of chicken soup
1 tsp paprika
½ tsp cayenne pepper
1 tsp garlic powder
¼ cup green onions, slice
Directions
- Set to 350°F (175°C) and grease a 9×13 casserole dish with butter or cooking spray.
- Heat a skillet over medium, add oil, and cook chicken breasts 6–7 minutes per side until golden and done. Rest 5 minutes, then shred.
- Boil salted water, cook pasta until al dente (8–10 minutes), drain, and set aside.
- In a large bowl, combine shredded chicken, spaghetti, cream of chicken soup, bell peppers, paprika, cayenne, garlic powder, and half the cheese. Stir well.
- Spread mixture into the greased dish. Top with remaining cheese.
- Bake uncovered 25–30 minutes until bubbly and golden brown.
- Let rest 5 minutes, garnish with green onions, and serve warm.
Notes
- If your casserole looks dry before baking, add a splash of chicken broth to keep it moist.