If you love the idea of creamy comfort food with a spicy twist, you are in for a real treat with this Mexican Chicken Alfredo Casserole Recipe. It perfectly marries the rich, velvety flavors of Alfredo sauce and Parmesan cheese with the zesty brightness of salsa and taco seasoning, all layered with tender cooked chicken and penne pasta. The result is a hearty, satisfying casserole that feels like a warm hug on a plate but with an exciting Mexican-inspired kick that keeps you coming back for more. Whether you’re cooking for a family dinner or a casual get-together, this dish brings remarkable flavor and a touch of indulgence to the table with surprisingly simple ingredients.

Ingredients You’ll Need
The magic of this Mexican Chicken Alfredo Casserole Recipe lies in its straightforward yet wonderfully balanced ingredients. Each one adds an important element—whether it’s creaminess, spice, or texture—making the dish a harmonious blend that’s easy to prepare but impressive to enjoy.
- 1 (16-oz) package penne pasta: The perfect shape to hold onto the creamy sauce and mingle delightfully with the other ingredients.
- 4 cups cooked chopped chicken: Adds hearty protein and soaks up all the flavorful sauce for a filling meal.
- 2 Tbsp minced onion flakes: Brings a subtle savory depth without the moisture fresh onions can add.
- 2 (15-oz) jars Alfredo sauce: The luscious, creamy base that transforms the casserole into a decadent dish.
- 1½ cups salsa: Introduces zesty, tangy notes to brighten up the rich Alfredo.
- 1 cup ricotta cheese: Adds an extra layer of creamy, slightly sweet texture that blends perfectly with the chicken and pasta.
- 1 (1-oz) package taco seasoning: Gives the dish its unmistakable Mexican flair with a balanced spice blend.
- 1½ cups grated Parmesan cheese: Sprinkled on top, it melts into a golden crust that adds savory bite and beautiful color.
How to Make Mexican Chicken Alfredo Casserole Recipe
Step 1: Prepare the Oven and Baking Dish
Start by preheating your oven to 350ºF. While it warms, lightly spray a 9×13-inch baking dish with cooking spray to prevent sticking and make cleanup a breeze. Getting the oven and dish ready upfront sets the stage for a smooth cooking experience.
Step 2: Cook the Pasta
Boil the penne pasta according to the package directions until just al dente. This ensures the pasta will hold up well in the casserole without becoming mushy when baked. Once cooked, drain the pasta well to avoid excess moisture, which can water down your creamy sauce.
Step 3: Combine All the Flavorful Ingredients
In a large bowl, mix together the cooked chopped chicken, minced onion flakes, Alfredo sauce, salsa, ricotta cheese, and taco seasoning. Give it a good stir so every bite is packed with balanced flavor. Then gently fold in the cooked penne pasta, making sure everything is evenly coated with the creamy and spicy mixture before transferring it to your prepared baking dish.
Step 4: Add the Parmesan Cheese Topping
Sprinkle the grated Parmesan cheese generously over the top of the casserole. This cheese topping is what will transform during baking, creating a deliciously browned, slightly crispy layer that contrasts beautifully with the creamy filling beneath.
Step 5: Bake Until Bubbling and Golden
Cover the casserole dish and bake for 50 to 60 minutes. The goal is a bubbly, hot casserole with a lightly browned cheesy top. The aroma filling your kitchen during this time is quite simply irresistible and will have everyone eager for dinner.
How to Serve Mexican Chicken Alfredo Casserole Recipe

Garnishes
Garnishing this casserole can elevate both the look and taste. Consider fresh chopped cilantro for a burst of color and freshness, or a dollop of sour cream to balance the spices with a cool, creamy touch. A squeeze of lime can also brighten the rich flavors beautifully before serving.
Side Dishes
Since this casserole is hearty and rich, pairing it with a crisp green salad or roasted vegetables works wonderfully to add texture and lighten the meal. Simple sides like steamed broccoli or a tangy slaw complement the creamy sauce without overpowering it.
Creative Ways to Present
For a fun twist, serve the Mexican Chicken Alfredo Casserole Recipe in individual ramekins for personal portions that look charming on a dinner table. Alternatively, spoon it over a bed of fresh spinach or alongside a few warm tortillas to make the meal feel even more festive and family-style.
Make Ahead and Storage
Storing Leftovers
This casserole keeps beautifully in the fridge for up to 3 days. Store leftovers in an airtight container to maintain the creamy texture and prevent the top layer from drying out. It’s perfect for a next-day meal that reheats easily without losing flavor.
Freezing
If you want to enjoy this Mexican Chicken Alfredo Casserole Recipe later, freeze it before baking and wrap it tightly with foil and plastic wrap. It can last up to 2 months in the freezer. When ready to eat, thaw overnight in the fridge and bake as directed for a fresh-from-the-oven taste.
Reheating
Reheat leftovers covered in the microwave or oven until warmed through. If using the oven, cover with foil to stop the cheese from burning and remove it during the last few minutes to refresh that golden topping. This method helps maintain the dish’s original creamy, comforting texture.
FAQs
Can I use fresh chicken instead of cooked chicken?
Yes, but you’ll want to fully cook and chop the chicken before mixing it with the other ingredients. Using pre-cooked chicken is just easier and ensures even cooking throughout the casserole.
Is there a way to make this recipe gluten-free?
Absolutely! Swap the penne pasta for a gluten-free variety or use zucchini noodles for a low-carb option. Just make sure your Alfredo sauce and taco seasoning are also gluten-free.
Can I add more vegetables to the casserole?
Definitely! Chopped bell peppers, corn, or black beans would all add great texture and flavor that complement the existing ingredients perfectly.
What if I don’t have ricotta cheese on hand?
You can substitute ricotta with cream cheese or even cottage cheese for a similar creamy effect, though the flavor and texture may vary slightly.
How spicy is this casserole?
The taco seasoning and salsa give it a mild to moderate kick, but you can adjust by choosing a milder salsa or adding extra seasoning if you prefer more heat.
Final Thoughts
This Mexican Chicken Alfredo Casserole Recipe is truly a crowd-pleaser that brings together the best of creamy Italian comfort and bold Mexican flavors in one dish. It’s simple enough for a weeknight but special enough to share with friends and family. Next time you want a cozy meal packed with flavor, give this recipe a try—you might just find your new favorite go-to dinner!
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Mexican Chicken Alfredo Casserole Recipe
- Prep Time: 15 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 5 minutes
- Yield: 8 servings
- Category: Casserole
- Method: Baking
- Cuisine: Mexican-American
Description
This Mexican Chicken Alfredo Casserole combines creamy Alfredo sauce, spicy salsa, tender chicken, and penne pasta into a comforting, flavorful baked dish perfect for family dinners or gatherings.
Ingredients
Pasta & Protein
- 1 (16-oz) package penne pasta
- 4 cups cooked chopped chicken
Sauces & Dairy
- 2 (15-oz) jars Alfredo sauce
- 1½ cups salsa
- 1 cup ricotta cheese
- 1½ cups grated Parmesan cheese
Seasonings & Others
- 2 Tbsp minced onion flakes
- 1 (1-oz) package taco seasoning
Instructions
- Preheat Oven and Prepare Dish: Preheat your oven to 350ºF (175ºC). Lightly spray a 9×13-inch baking dish with cooking spray to prevent sticking and facilitate easy cleanup.
- Cook Pasta: Boil the penne pasta according to the package instructions until al dente. Drain thoroughly to remove excess water.
- Mix Ingredients: In a large bowl, combine the cooked chopped chicken, minced onion flakes, Alfredo sauce, salsa, ricotta cheese, and taco seasoning. Mix these well to evenly distribute flavors. Then, stir in the cooked penne pasta until all components are well coated.
- Assemble the Casserole: Spread the pasta and chicken mixture evenly into the prepared baking dish, ensuring an even layer for consistent cooking.
- Add Cheese Topping: Sprinkle the grated Parmesan cheese evenly over the top of the casserole to add a rich, savory crust once baked.
- Bake: Cover the casserole with foil and bake in the preheated oven for 50 to 60 minutes, or until the casserole is bubbly and heated through.
Notes
- You can substitute cooked rotisserie chicken to save time.
- Adjust the amount of salsa to control the spiciness of the dish.
- Covering the casserole while baking helps keep the pasta moist and prevents over-browning.
- Let the casserole rest for 5 minutes after baking for easier serving.
- For a lower-carb alternative, consider using chickpea or lentil pasta.

