This creamy, peppery pasta feels like a cozy hug on a plate — silky garlic-mozzarella sauce clings to tender spaghetti while Cajun-seasoned chicken adds a smoky, spicy punch. The sauce is rich but balanced by bright garlic and a touch of Parmesan, and the melted mozzarella on top gives you that irresistible gooey pull. It comes together quickly with everyday pantry ingredients, making it a perfect weeknight crowd-pleaser or an indulgent weekend dinner. Serve it with a crisp green salad or garlic bread for a full meal that feels restaurant-worthy without the fuss. If you enjoy bold, garlicky chicken pastas, you might also like a different take on aromatic chicken and garlic in my roundup of chicken shawarma with garlic sauce for more flavor inspiration.
Why You’ll Love This Easy Creamy Cajun Chicken Spaghetti with Garlic Mozzarella Sauce
- Big, bold Cajun flavor balanced by a creamy, garlicky sauce for savory comfort in every bite.
- Fast and straightforward: sear the chicken, make a simple roux-based sauce, toss with cooked spaghetti — dinner in under an hour.
- Family-friendly while still grown-up enough for dinner guests; spice is adjustable.
- One-skillet (mostly) finish — less cleanup and easy service straight from the pan.
- Versatile: good with extra veggies, different cheeses, or swapped proteins if you want.
- Crowd-pleasing textures: tender chicken, silky sauce, and gooey melted mozzarella on top.
- Uses pantry staples and basic dairy, so it’s convenient and budget-friendly.
What Is Easy Creamy Cajun Chicken Spaghetti with Garlic Mozzarella Sauce?
This dish is a comforting pasta meal featuring bite-sized, seasoned chicken tossed in a creamy garlic-and-mozzarella sauce with spaghetti. The chicken is seasoned with Cajun spice and smoked paprika, giving a smoky, slightly spicy crust, while the sauce is built with a classic roux (butter + flour) to create a rich, velvety texture. It tastes savory and slightly spicy with a garlicky backbone and a cheesy finish from mozzarella and Parmesan. It’s typically served as a hearty weeknight dinner, casual weekend meal, or anytime you crave a comforting pasta that’s both crowd-pleasing and achievable at home. The overall vibe is cozy and indulgent — perfect for colder nights or when you want something delicious without a lot of fuss. If you like exploring similar bold-chicken flavors, try a creamy take inspired by Middle Eastern spices like the chicken kofta creamy garlic yogurt sauce for variety.
Ingredients for Easy Creamy Cajun Chicken Spaghetti with Garlic Mozzarella Sauce
For the Base
- 1 pound boneless, skinless chicken breasts, cut into bite-sized pieces
- 2 tablespoons olive oil
- 2 tablespoons Cajun seasoning
- 1 teaspoon smoked paprika
- 1 pound spaghetti
For the Sauce
- 4 tablespoons butter
- 4 cloves garlic, minced
- 1/4 cup all-purpose flour
- 3 cups whole milk
- 1 cup chicken broth
- 8 ounces cream cheese, softened
- 2 cups shredded mozzarella cheese, divided
- 1/2 cup grated Parmesan cheese
- Salt and freshly ground black pepper, to taste
- Optional: Red pepper flakes for extra heat
For Serving (optional)
- Extra grated Parmesan
- Fresh parsley or chives for garnish
Ingredient Notes (Substitutions, Healthy Swaps)
- Dairy alternatives: Swap whole milk for unsweetened oat milk for a dairy-light version, but know the sauce will be slightly thinner and less rich. Use a cream cheese alternative if needed, though texture will change.
- Lower-fat swaps: Use 2% milk and reduced-fat cream cheese to cut calories, but the sauce will be less silky. Consider adding an extra ounce of Parmesan to boost flavor.
- Gluten-free option: Replace all-purpose flour with a 1:1 gluten-free flour blend and use gluten-free spaghetti. Check that your Cajun seasoning is gluten-free.
- Cheese swaps: If you don’t have mozzarella, Monterey Jack works as a similar melty cheese. For a sharper finish, increase Parmesan slightly.
- Broth swap: Use low-sodium chicken broth to better control seasoning — you can always add salt later.
- Protein swaps (optional): You can use shrimp or turkey breast pieces instead of chicken; adjust cooking time so protein doesn’t overcook.
Step-by-Step Instructions
Step 1 – Cook the Pasta
- Cook spaghetti according to package directions until al dente. Drain and set aside.
Visual cue: Pasta should be tender but still have a slight bite (al dente), not mushy.
Step 2 – Season and Sear the Chicken
2. Season chicken with Cajun seasoning and smoked paprika. Heat olive oil in a large skillet over medium-high heat, then add chicken and cook until browned and cooked through, about 6–8 minutes.
Visual cue: Chicken pieces should have a golden-brown exterior and register 165°F (74°C) if checked.
Pro cue: Don’t crowd the pan — sear in a single layer for better browning. If pieces are uneven, flatten slightly for even cooking.
Step 3 – Build the Garlic Base
3. Remove chicken from skillet and set aside. In the same skillet, melt butter over medium heat, add minced garlic, and sauté for 1 minute until fragrant.
Visual cue: Garlic should be soft and aromatic, not browned (browned garlic turns bitter).
Pro cue: Lower heat if garlic starts to brown quickly — gentle cooking extracts flavor without burning.
Step 4 – Make the Roux and Sauce
4. Sprinkle in flour and whisk to form a roux, then gradually whisk in milk and chicken broth. Bring to a gentle simmer.
Visual cue: The sauce will thicken and smooth out as it simmers; you should see small bubbles, not a vigorous boil.
Pro cue: Add liquid gradually and whisk constantly to prevent lumps; a silicone whisk helps scrape the pan.
Step 5 – Add Cheeses and Season
5. Add cream cheese and 1 cup of mozzarella, stirring until melted and smooth. Stir in Parmesan, seasoning with salt, pepper, and red pepper flakes if using.
Visual cue: Sauce becomes glossy and creamy, with cheese melted and fully incorporated.
Pro cue: Soften cream cheese before adding so it blends quickly and evenly.
Step 6 – Combine Everything
6. Add chicken back into the sauce and simmer for 2–3 minutes, then add cooked spaghetti to skillet and toss to coat in sauce.
Visual cue: Pasta should be evenly coated and the chicken warmed through.
Pro cue: Add a splash of reserved pasta water if the sauce needs loosening — but only a tablespoon at a time.
Step 7 – Finish with Melted Mozzarella
7. Sprinkle remaining mozzarella on top, cover, and let sit for 2–3 minutes until cheese melts.
Visual cue: Top mozzarella should be melted and slightly gooey, with a uniform layer.
Pro cue: For a golden top, place the skillet briefly under a broiler (if skillet is oven-safe) for 1–2 minutes — watch closely.
Pro Tips for Success
- Heat control: Keep sauce at a gentle simmer; boiling can break the dairy and make it grainy.
- Texture control: Cook spaghetti to al dente so it doesn’t soak up too much sauce while resting.
- Seasoning balance: Taste after the cream cheese and Parmesan go in — these add saltiness, so adjust carefully.
- Cheese melting: Use room-temperature cream cheese to avoid lumps and ensure smooth sauce.
- Avoid overcrowding: Brown chicken in batches if necessary to get a good sear.
- Salvage a thick sauce: If the sauce becomes too thick after resting, stir in small amounts of milk or reserved pasta water to loosen.
- Timing: Have pasta ready and warm before combining so the sauce clings well.
Flavor Variations
All of these are optional and keep the base recipe intact.
- Spicy Cajun: Stir in 1/2 to 1 teaspoon of cayenne pepper with the Cajun seasoning for extra heat.
- Veggie boost: Add sliced bell peppers and baby spinach — sauté peppers after removing chicken, then proceed with garlic.
- Herb-forward: Stir in 1–2 teaspoons chopped fresh thyme or oregano with the cream cheese for an herbal lift.
- Cheesy upgrade: Swap half the mozzarella for fontina or provolone for extra depth.
- Lemon brightness: Finish with a teaspoon of lemon zest for a subtle lift that cuts through the richness.
- Lighter version: Use 2% milk and reduced-fat cream cheese; add an extra ounce of Parmesan for flavor.
Serving Suggestions
- Pair with a crisp green salad dressed with lemon vinaigrette to balance the richness.
- Serve with garlic bread or crusty baguette to mop up the creamy sauce.
- Add a side of roasted vegetables like asparagus or broccolini for color and texture.
- Plate family-style: Serve straight from the skillet for a casual, comforting presentation.
- For a cozy dinner, serve with a glass of cold iced tea or sparkling water with lemon.
- Garnish with extra grated Parmesan and chopped parsley or chives for a fresh finish.
Make-Ahead, Storage & Reheating
- Make-ahead: You can cook the chicken and prepare the sauce up to a day ahead, then reheat gently and toss with freshly cooked spaghetti before serving.
- Refrigeration: Store leftover mixed pasta in an airtight container for up to 3–4 days.
- Reheating stovetop: Reheat gently over low heat with a splash of milk or chicken broth, stirring until warmed and creamy.
- Microwave: Reheat in short bursts (30–45 seconds), stirring in between and adding a splash of milk if needed to restore creaminess.
- Texture changes: The sauce will thicken in the fridge as the pasta absorbs liquid; add liquid when reheating to restore the desired texture.
Storage and Freezing Instructions
- Freezing: Freezing this dish is not ideal because the dairy-based sauce can separate and become grainy when thawed. If you must freeze:
- Freeze only the cooked chicken and sauce (without pasta) in a freezer-safe container for up to 2 months.
- Thaw overnight in the fridge and reheat gently, whisking in a little milk to help re-emulsify the sauce, then toss with freshly cooked spaghetti.
- Preferred alternative: For best texture, cook the full recipe and refrigerate for 3–4 days, or freeze components separately (sauce/chicken) and cook fresh pasta when ready to serve.
Nutrition Facts (Per Serving)
| Calories | Protein | Carbs | Fat | Fiber | Sodium |
|———|——–|——|—–|——|——-|
| 820 kcal | 48 g | 70 g | 36 g | 3 g | 1,120 mg |
Nutrition values are estimates and may vary depending on ingredients and portion sizes.
FAQ About Easy Creamy Cajun Chicken Spaghetti with Garlic Mozzarella Sauce
- Q: Why did my sauce turn grainy?
A: Graininess can happen if the sauce cooks at too high a temperature or if cold cream cheese was added too quickly. Keep heat low and add softened cream cheese slowly while whisking. - Q: Can I use pre-shredded mozzarella?
A: Yes, but pre-shredded cheese often contains anti-caking agents that can affect melting. Freshly shredded melts smoother. - Q: How do I know the chicken is cooked through?
A: Chicken should be golden-brown and register 165°F (74°C) with an instant-read thermometer. Cut a piece open — it should be opaque, not pink. - Q: Can I make this less spicy for kids?
A: Reduce or omit red pepper flakes and use a mild Cajun seasoning. You can always add heat to adult portions at the table. - Q: How should I reheat leftovers so the pasta doesn’t dry out?
A: Reheat gently on the stovetop with a splash of milk or chicken broth to restore creaminess, stirring often. - Q: Is there a way to make the sauce thinner if it’s too thick?
A: Whisk in small amounts of warm milk or reserved pasta water until you reach the desired consistency.
Notes
- Plating idea: Twirl portions of spaghetti with tongs for a neat restaurant-style nest and top with chicken pieces.
- Small flavor upgrade: Finish with a pinch of red pepper flakes and a drizzle of olive oil for shine.
- Seasoning adjustment: Taste before serving — cream cheese and Parmesan add salt, so adjust sparingly.
- Presentation tip: Scatter chopped parsley or chives over the top for color contrast against the creamy sauce.
- Serving size guide: Recipe serves about 4 generous portions; divide accordingly for smaller appetites.
Easy Creamy Cajun Chicken Spaghetti with Garlic Mozzarella Sauce
- Total Time: 45 minutes
- Yield: 4 servings
- Diet: None
Description
A cozy pasta dish featuring Cajun-seasoned chicken tossed in a creamy garlic-mozzarella sauce with tender spaghetti.
Ingredients
- 1 pound boneless, skinless chicken breasts, cut into bite-sized pieces
- 2 tablespoons olive oil
- 2 tablespoons Cajun seasoning
- 1 teaspoon smoked paprika
- 1 pound spaghetti
- 4 tablespoons butter
- 4 cloves garlic, minced
- 1/4 cup all-purpose flour
- 3 cups whole milk
- 1 cup chicken broth
- 8 ounces cream cheese, softened
- 2 cups shredded mozzarella cheese, divided
- 1/2 cup grated Parmesan cheese
- Salt and freshly ground black pepper, to taste
- Optional: Red pepper flakes for extra heat
- Extra grated Parmesan for serving
- Fresh parsley or chives for garnish
Instructions
- Cook spaghetti according to package directions until al dente. Drain and set aside.
- Season chicken with Cajun seasoning and smoked paprika. Heat olive oil in a large skillet over medium-high heat, then add chicken and cook until browned and cooked through, about 6–8 minutes.
- Remove chicken from skillet and set aside. In the same skillet, melt butter over medium heat, add minced garlic, and sauté for 1 minute until fragrant.
- Sprinkle in flour and whisk to form a roux, then gradually whisk in milk and chicken broth. Bring to a gentle simmer.
- Add cream cheese and 1 cup of mozzarella, stirring until melted and smooth. Stir in Parmesan, seasoning with salt, pepper, and red pepper flakes if using.
- Add chicken back into the sauce and simmer for 2–3 minutes, then add cooked spaghetti to skillet and toss to coat in sauce.
- Sprinkle remaining mozzarella on top, cover, and let sit for 2–3 minutes until cheese melts.
Notes
Use fresh ingredients for the best flavor and adjust spice levels to your preference. This dish pairs well with a green salad or garlic bread.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Main Course
- Method: Skillet
- Cuisine: Cajun/Italian