Creamy Southern Cheesy Chicken Spaghetti Bake
When it comes to ultimate comfort food, nothing brings the family together like a piping hot, bubbling dish of Creamy Southern Cheesy Chicken Spaghetti. This classic casserole features tender spaghetti noodles, juicy shredded chicken breasts, and sweet diced tomatoes smothered in an incredibly rich, velvety cream cheese and cheddar sauce.
Perfect for busy weeknights, potlucks, or a cozy Sunday dinner, this dump-and-bake favorite can be prepped ahead of time and frozen for convenience. Skip the boring weeknight dinners—this rich, deeply savory Southern classic will instantly become a permanent fixture in your weekly meal rotation.
⏱️ Prep Time, Cook Time, & Yield
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Total Time: 50 minutes
- Yields: 6-8 servings
🛒 Ingredients Shopping List
1. The Pasta & Chicken Base
▸ 12 oz spaghetti noodles (broken in half before boiling)
▸ 3 cups cooked chicken, shredded or chopped (rotisserie chicken works beautifully)
▸ 1 can (10 oz) diced tomatoes with green chilies (like Ro-Tel, drained slightly)
2. The Ultra-Creamy Cheese Sauce
▸ 8 oz cream cheese, softened and cubed
▸ 1 can (10.5 oz) condensed cream of chicken soup
▸ 1 can (10.5 oz) condensed cream of mushroom soup (or extra cream of chicken)
▸ 2 cups sharp cheddar cheese, shredded (divided)
▸ 1 cup chicken broth (or pasta cooking water)
▸ 1 tsp garlic powder
▸ 1 tsp onion powder
▸ 1/2 tsp smoked paprika
▸ Salt and black pepper to taste
3. The Fresh Garnish
▸ 1/4 cup fresh Italian parsley, finely chopped
🍳 Step-by-Step Cooking Instructions
Step 1: Cook the Spaghetti Noodles
Boil the Pasta: Bring a large pot of salted water to a rolling boil. Drop in the broken spaghetti noodles and cook according to the package instructions until just al dente (approx. 8–9 minutes).
Drain and Set Aside: Drain the noodles in a colander, reserving a splash of pasta water if you want extra richness in your sauce. Do not rinse the pasta; the natural starches help the cheese sauce cling beautifully.
Step 2: Build the Creamy Cheese Sauce
Combine the Bases: In a large saucepan or Dutch oven over medium-low heat, combine the softened cream cheese cubes, cream of chicken soup, cream of mushroom soup, and chicken broth.
Melt and Whisk: Whisk the mixture continuously for 4–5 minutes as the cream cheese melts down into a perfectly smooth, velvety sauce.
Season and Add Cheese: Stir in the garlic powder, onion powder, smoked paprika, salt, and black pepper. Remove from heat and fold in 1.5 cups of the shredded sharp cheddar cheese until melted and fully incorporated.
Step 3: Mix the Casserole Elements
Preheat the Oven: Preheat your oven to 350°F (175°C) and lightly grease a 9×13-inch glass baking dish with non-stick cooking spray or butter.
Toss Together: In a large mixing bowl (or directly in your Dutch oven), combine the cooked al dente spaghetti noodles, the shredded chicken, the diced tomatoes with green chilies, and the warm cheese sauce. Toss thoroughly until every strand of spaghetti is deeply coated.
Step 4: Bake to Bubbly Perfection
Transfer: Pour the combined chicken spaghetti mixture evenly into your prepared 9×13-inch baking dish, smoothing the top with a spatula.
Top with Cheese: Scatter the remaining 1/2 cup of shredded cheddar cheese evenly across the top surface.
Bake: Bake uncovered for 25–30 minutes until the casserole is completely hot and bubbling violently around the edges, and the cheese on top is beautifully melted.
Garnish and Serve: Remove from the oven, shower the top with the finely chopped fresh parsley, and let it rest for 5 minutes before scooping.
🍽️ How to Serve
Use a large serving spoon to scoop generous portions of the hot, decadent Cheesy Chicken Spaghetti onto wide plates or shallow bowls.
Serve immediately alongside a crisp garden salad dressed in vinaigrette to cut through the richness, or pair it with warm, buttery garlic bread for the ultimate comfort meal experience.
💡 Expert Pro-Tips for Success
Shred Your Own Cheese: Avoid pre-packaged shredded cheese if possible. Pre-bagged cheeses are coated in cellulose powder to prevent sticking, which stops the cheese from melting into that perfectly smooth, stringy glaze seen in the photo.
Don’t Overcook the Pasta: Because the spaghetti continues cooking inside the oven as it absorbs the cream sauce, boiling it strictly to al dente (or even 1 minute under) keeps the noodles from turning mushy during the baking process.
🍽️ Nutrition Facts (Per Serving)
- Calories: ~580 kcal
- Protein: 32g
- Carbohydrates: 42g
- Fat: 30g
- Fiber: 2g
❓ Frequently Asked Questions (FAQs)
Can I make this chicken spaghetti casserole ahead of time?
Absolutely! Assemble the entire dish up until the final baking step, cover it tightly with aluminum foil, and store it in the refrigerator for up to 24 hours. When ready to eat, bake it covered for 15 minutes, then uncovered for an additional 20 minutes until piping hot.
Can I freeze this bake?
Yes. You can freeze the assembled casserole safely for up to 3 months. Cover it tightly with a layer of plastic wrap followed by a heavy-duty layer of aluminum foil. Thaw completely in the refrigerator overnight before baking as directed.