Easy Southern Chicken Spaghetti Recipe with Cheddar Cheese

This easy Southern Chicken Spaghetti recipe is a creamy, cheesy baked dinner made with shredded chicken, spaghetti, cream of chicken soup, cream of mushroom soup, Rotel tomatoes and green chilies, vegetables, and sharp cheddar cheese. It serves 6–8 people and takes about 50–55 minutes from start to finish, including 20 minutes of preparation and 30–35 minutes of cooking.

Every forkful delivers tender pasta, savory chicken, a rich sauce, gentle tomato-chile warmth, and a bubbling cheddar topping. It is the kind of comforting casserole that fits a busy weeknight, a church supper, a family gathering, or any occasion when you want a hearty Southern dinner without complicated techniques.

Why You’ll Love This Recipe

Southern chicken spaghetti earns its place in the dinner rotation because it combines familiar pantry ingredients into one generous, bubbling casserole. The creamy soup base gives the pasta a rich coating, while Rotel tomatoes and green chilies add bright tomato flavor and a mild chile note.

This recipe is also flexible without losing its classic character. You can cook chicken specifically for the casserole, use leftover roasted chicken, or save time with a rotisserie chicken from the grocery store.

The finished dish is filling enough to serve as the main course, yet it pairs easily with simple sides. A crisp green salad, steamed vegetables, cornbread, or buttery green beans all work well beside the creamy pasta.

If you enjoy chicken dinners with a bolder sweet-and-spicy profile, you may also like this spicy honey glazed chicken for another family-friendly meal idea.

Ingredients You’ll Need

The ingredient list is straightforward, which is part of the charm of this Southern casserole. The two condensed soups create the creamy foundation, while chicken broth loosens the sauce and adds savory flavor.

• Chicken: Use 1 pound of boneless, skinless chicken breasts or about 3 cups of cooked shredded chicken.
• Spaghetti: Twelve ounces gives the casserole a generously saucy texture. If you prefer more pasta and a less-saucy result, use 16 ounces.
• Aromatics: Onion, green bell pepper, and garlic provide the savory base and add small bites of tender vegetables.
• Canned ingredients: One can each of condensed cream of chicken soup, condensed cream of mushroom soup, and undrained Rotel diced tomatoes and green chilies.
• Cheese: Two cups of shredded sharp cheddar are divided between the sauce and the topping.
• Seasonings: Kosher salt, black pepper, and optional paprika keep the flavor warm and balanced.

For the best melting texture, grate the cheddar yourself. Pre-shredded cheese can work, but freshly grated cheese generally melts more smoothly into the sauce and across the top.

For another cozy dinner featuring a creamy, comforting bowl, keep our easy tortellini soup in mind for a different night.

How to Make It Step-by-Step

Step 1: Place the chicken in lightly salted water or chicken broth and cook until it reaches 165°F internally, usually 12–18 minutes depending on the thickness of the breasts. Remove the chicken, shred it while warm, and reserve 1 cup of the cooking liquid for the sauce.

Step 2: Heat the oven to 350°F and lightly grease a 9-by-13-inch baking dish. This preparation keeps the casserole from sticking and makes serving easier once the cheese has browned.

Step 3: Bring a pot of salted water to a boil and cook the spaghetti until just shy of al dente. Drain it 1–2 minutes earlier than the package directions because the pasta will continue cooking in the oven.

Step 4: Melt the butter in a large skillet, then add the finely chopped onion and green bell pepper. Sauté for 5–7 minutes, stirring occasionally, until the vegetables soften without becoming deeply browned.

Step 5: Add the minced garlic and cook for 30 seconds, just until fragrant. Stir in the cream of chicken soup, cream of mushroom soup, undrained Rotel, reserved chicken broth, salt, pepper, and optional paprika.

Step 6: Warm the sauce gently until it is smooth and hot, but avoid a vigorous boil. Stir in 1 cup of the cheddar until completely melted, creating a creamy cheese sauce that will coat the pasta.

Step 7: Add the drained spaghetti and shredded chicken to the skillet. Use tongs or a large spoon to toss everything together carefully, making sure the sauce reaches the center of the pasta rather than sitting only on the surface.

Step 8: Pour the mixture into the prepared baking dish and spread it evenly. Sprinkle the remaining 1 cup of cheddar over the top, covering the casserole from edge to edge.

Step 9: Bake uncovered for 20–25 minutes, until the casserole bubbles around the edges and the cheese is melted. Rest it for 5–10 minutes before serving so each scoop holds together while remaining creamy.

Chef Tips for the Best Texture

The most important pasta tip is to stop cooking the spaghetti while it is still slightly firm. Fully cooked pasta may become soft or mushy during the 20–25 minutes in the oven, especially as it absorbs the sauce.

Use the chicken’s cooking broth instead of plain water whenever possible. That reserved liquid carries savory chicken flavor into the sauce and helps prevent the casserole from becoming dry as it bakes.

Warm chicken is easier to shred into tender strands than cold chicken. If using rotisserie chicken, remove the skin and bones, then shred or chop the meat into bite-size pieces before adding it to the sauce.

Keep the sauce at a gentle heat while combining the ingredients. A vigorous boil can make the soup-based sauce look less smooth, while gentle heating blends the soups, broth, tomatoes, seasonings, and cheese evenly.

For extra richness, replace some or all of the cheddar with about 8 ounces of cubed Velveeta. The cheddar provides sharp flavor, while Velveeta creates a particularly smooth, creamy sauce.

Easy Variations and Serving Ideas

The classic version is satisfying as written, but a few small changes can make it fit your family’s preferences. A small amount of diced celery can add extra vegetable flavor and a pleasant tender crunch.

• Add diced jalapeño if you want more chile heat than the Rotel provides.
• Stir in cooked bacon for smoky, salty bites throughout the casserole.
• Use 16 ounces of spaghetti when serving a larger crowd or when you prefer a less-saucy dish.
• Swap some cheddar for cubed Velveeta when you want an especially silky sauce.
• Finish with chopped parsley or sliced green onions for a fresh, colorful garnish.

Serve the casserole hot after its short resting period. A spoonful of cool sour cream is optional, while a fresh green salad helps balance the creamy richness.

When you want a chicken dish with tomatoes, olives, and a more savory Mediterranean direction, try this chicken puttanesca as a flavorful alternative.

Storage and Reheating

Cool leftover chicken spaghetti promptly, then cover the baking dish or transfer portions to airtight containers. Refrigerate leftovers and enjoy them within a few days for the best flavor and texture.

Reheat individual portions gently in the microwave, stirring or rotating halfway through when possible. A small splash of chicken broth can loosen the sauce if the pasta has absorbed much of the moisture.

For a larger amount, cover the casserole with foil and warm it in the oven until heated through. Remove the foil near the end if you want the cheese on top to regain some of its baked texture.

This casserole also makes a practical make-ahead dinner. Assemble it in the baking dish, keep it chilled until ready to bake, and allow extra time for the center to become hot if the dish goes into the oven cold.

What to Serve with Chicken Spaghetti

Because the casserole already includes chicken, pasta, vegetables, and a creamy sauce, side dishes can stay simple. Steamed broccoli, green beans, or a crisp lettuce salad bring freshness without competing with the main dish.

Warm bread is another natural match. Cornbread, garlic toast, or soft dinner rolls are useful for catching every bit of the cheddar sauce around the plate.

For dessert, something bright and fruity creates a pleasant finish after this rich dinner. These Pina Colada bars offer coconut and pineapple flavor, while these bakery-style blueberry muffins are a simple option for the next morning.

Easy Southern Chicken Spaghetti Recipe

A creamy Southern-style chicken spaghetti casserole made with shredded chicken, Rotel tomatoes, two condensed soups, spaghetti, vegetables, and sharp cheddar cheese. The finished casserole is bubbling, comforting, and ideal for sharing.

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Prep Time 20 minutes mins

Cook Time 30 minutes mins

Total Time 50 minutes mins

Servings: 6 servings

Ingredients Method Notes

Ingredients

  

Chicken and Pasta

• 1 pound Boneless, skinless chicken breasts, or about 3 cups cooked shredded chicken
• 12 ounces Spaghetti

Vegetables and Sauce

• 2 tablespoons Butter
• 1 medium Medium yellow onion, finely chopped
• 1 medium Medium green bell pepper, finely chopped
• 2 cloves Garlic cloves, minced
• 10.5 ounces Condensed cream of chicken soup
• 10.5 ounces Condensed cream of mushroom soup
• 10 ounces Rotel diced tomatoes and green chilies, undrained
• 1 cup Chicken broth, preferably reserved from cooking the chicken

Seasoning and Topping

• 2 cups Sharp cheddar cheese, shredded and divided
• 1/2 teaspoon Kosher salt, or to taste
• 1/2 teaspoon Black pepper
• 1/2 teaspoon Paprika, optional
• To taste Chopped parsley or sliced green onions, optional

Method

 

Step-by-Step

1. Cook the chicken in lightly salted water or chicken broth until the thickest part reaches 165°F, about 12–18 minutes depending on thickness. Shred the chicken while warm and reserve 1 cup of the cooking liquid; rotisserie chicken may be used instead.
2. Heat the oven to 350°F and lightly grease a 9-by-13-inch baking dish. Cook the spaghetti in salted water until just shy of al dente, usually 1–2 minutes less than the package directions, then drain.
3. Melt the butter in a large skillet over medium heat. Add the onion and green bell pepper and sauté for 5–7 minutes, until softened, then stir in the garlic and cook for 30 seconds.
4. Stir in both condensed soups, the undrained Rotel tomatoes, chicken broth, salt, pepper, and optional paprika. Heat gently until the sauce is smooth and hot, taking care not to let it boil vigorously.
5. Add 1 cup of the shredded cheddar cheese and stir until melted into the sauce. The cheese should make the mixture creamy while the broth keeps it loose enough for baking.
6. Add the drained spaghetti and shredded chicken to the skillet. Toss carefully until the pasta and chicken are evenly coated with the creamy sauce.
7. Transfer the mixture to the prepared 9-by-13-inch baking dish and spread it into an even layer. Sprinkle the remaining 1 cup of cheddar over the top so every portion gets a golden, cheesy finish.
8. Bake the casserole uncovered at 350°F for 20–25 minutes, until it is bubbling around the edges and the cheese has melted. Let it rest for 5–10 minutes before serving so the sauce can settle.

Notes

For a less-saucy casserole, use 16 ounces of spaghetti instead of 12 ounces. About 8 ounces of cubed Velveeta may replace some or all of the cheddar for an especially smooth sauce. Store leftovers covered in the refrigerator and reheat gently with a small splash of broth if needed.

Final Thoughts

This Easy Southern Chicken Spaghetti recipe is dependable comfort food: creamy, cheesy, savory, and simple enough for a weeknight. Cooking the pasta slightly under al dente, using flavorful chicken broth, and shredding fresh cheddar are the small details that help the baked casserole turn out moist and satisfying.

Make it with freshly cooked chicken when you have time or use rotisserie chicken when dinner needs to happen quickly. After 20–25 minutes in the oven and a brief 5–10 minute rest, you will have a bubbling family-style meal ready to bring to the table.

Enjoy each serving with a crisp salad, green vegetables, or warm cornbread, and save the leftovers for an easy lunch. This is a generous, practical Southern dinner that tastes right at home whenever comfort food is called for.