Mexican Chicken Alfredo Casserole
This Mexican Chicken Alfredo Casserole is the kind of comfort-meets-creativity dinner that finds its way into rotation fast. Picture tender pasta, creamy Alfredo, bright salsa, and seasoned chicken all baked together until bubbly and lightly golden. It’s straightforward, crowd-pleasing, and perfect for weeknight dinners, potlucks, or anytime you want something satisfying with a little southwestern flair.
Why you’ll love this version
There’s something special about layering familiar creamy flavors with a dash of taco-inspired seasoning. The Alfredo sauce and ricotta add a silky richness while salsa and taco seasoning bring brightness and a touch of warmth. Parmesan melts into pockets of salty, nutty goodness, and the chicken adds protein that makes this a full, hearty meal. Best of all, the recipe is made with common pantry items and comes together quickly.
Ingredients
- 1 (16-oz) package penne pasta
- 4 cups cooked chopped chicken
- 2 Tbsp minced onion flakes
- 2 (15-oz) jars Alfredo sauce
- 1½ cups salsa
- 1 cup ricotta cheese
- 1 (1-oz) package taco seasoning
- 1½ cups grated Parmesan cheese
Make-ahead and substitutions
If you want to prep ahead, cook the pasta al dente and mix it with the sauce and fillings, then refrigerate. Bring it back to room temperature for about 30 minutes before baking, or add an extra 10–15 minutes to the baking time. For a lighter version, use reduced-fat ricotta and Alfredo sauce, and for extra texture, stir in a cup of frozen corn or black beans (thawed) before baking.
Equipment
- Large pot for boiling pasta
- Colander
- Mixing bowl
- 9×13-inch baking dish
- Oven preheated to 350°F (175°C)
Step-by-step directions
Follow these clear, numbered steps to assemble and bake the casserole. The directions below are rewritten for clarity while keeping the ingredient amounts and order intact.
- Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish and set it aside.
- Bring a large pot of salted water to a boil. Add the 1 (16-oz) package of penne pasta and cook until just al dente according to package instructions. Drain the pasta in a colander and return it to the pot or a large mixing bowl.
- In the same bowl as the hot pasta, pour in 2 (15-oz) jars of Alfredo sauce and 1½ cups of salsa. Stir gently to combine so the pasta is evenly coated.
- Add the 4 cups of cooked chopped chicken to the sauced pasta and gently fold it in to distribute the chicken throughout the mixture.
- Stir in 1 cup ricotta cheese and 2 Tbsp minced onion flakes until the mixture is creamy and the ricotta is incorporated evenly.
- Sprinkle the contents with 1 (1-oz) package taco seasoning and mix until the seasoning is fully distributed in the pasta and chicken mixture.
- Transfer the combined mixture into the prepared 9×13-inch baking dish, spreading it evenly so it bakes uniformly.
- Sprinkle 1½ cups grated Parmesan cheese evenly over the top of the casserole.
- Bake uncovered in the preheated oven for 25–30 minutes, or until the casserole is bubbling around the edges and the cheese on top has melted and begun to turn lightly golden.
- Remove the casserole from the oven and let it rest for 5–10 minutes before serving. This short rest helps the casserole set slightly, making it easier to slice and serve.
Serving suggestions
Serve this Mexican Chicken Alfredo Casserole with a simple green salad dressed with lime vinaigrette or a side of sautéed vegetables for balance. Fresh cilantro leaves, sliced green onions, or a spoonful of extra salsa on top make nice, bright garnishes. If you enjoy heat, add pickled jalapeños or a dash of hot sauce at the table.
Tips for best results
- Do not overcook the penne. Cook it to al dente so it holds up during baking and absorbs the sauces without becoming mushy.
- Use shredded, chopped cooked chicken that is well-drained. If your chicken is very moist, pat it dry before adding so the casserole doesn’t become watery.
- For even creaminess, stir the ricotta into the sauce and pasta while the pasta is still warm so it blends smoothly.
- If you prefer a crispier top, switch the oven to broil for the last 2–3 minutes while watching closely to avoid burning.
- To feed a crowd, double the casserole and bake in a larger pan, adjusting the baking time upward by 10–15 minutes as needed until bubbly.
Make it lighter or heartier
To lighten the casserole, use lower-fat Alfredo and ricotta. For a heartier version, stir in a cup of canned black beans (rinsed and drained) or a cup of frozen corn (thawed) with the chicken and pasta. Adding diced bell pepper or chopped cooked chorizo-style sausage will also increase texture and flavor—make sure any meat used matches the diet you follow.
Storage and reheating
Store leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place single servings in the microwave for 1–2 minutes, stirring halfway through, or reheat in a 350°F (175°C) oven for 15–20 minutes covered with foil so it warms through without drying out. If the casserole seems dry when reheating, add a splash of milk or a few spoonfuls of Alfredo sauce before warming.
Notes on ingredients
Stick to the ingredient amounts listed to maintain texture and balance. The 1 (1-oz) package taco seasoning provides an unmistakable southwestern flavor—if you prefer less sodium, you can use half the packet and add a pinch of cumin and chili powder to taste. The ricotta contributes creaminess without overpowering the Alfredo; do not omit it unless you want a thinner sauce.
Frequently asked questions
Can I use a different shape of pasta? Yes. Rigatoni, ziti, or rotini will work, but stick to the 16-oz quantity and adjust the cooking time so it’s al dente before baking.
What kind of chicken works best? Any cooked, chopped chicken is fine—roasted, rotisserie, or leftover baked chicken. Make sure it’s roughly chopped so it distributes evenly.
Can I freeze this casserole? Yes. Assemble the casserole in a freezer-safe dish, cover tightly with freezer wrap and foil, and freeze for up to 2 months. Bake from frozen at 375°F (190°C) for 60–75 minutes, covering with foil for the first 45–55 minutes, then uncovering to brown the top.
Final thoughts
This Mexican Chicken Alfredo Casserole hits a sweet spot between creamy comfort and bold flavor. It’s uncomplicated to make, flexible with pantry-friendly swaps, and always a welcome addition to the dinner table. Whether you’re cooking for family, feeding friends, or prepping a crowd-pleasing meal ahead of time, this dish brings cheesy, saucy satisfaction with minimal fuss.
Give it a try this week and see how quickly it becomes a go-to in your rotation.
Mexican Chicken Alfredo Casserole
Ingredients
Equipment
Method
- Preheat the oven to 350°F (175°C) and lightly spray a 9x13-inch baking dish with cooking spray.
- Cook the penne pasta according to package directions until al dente, then drain in a colander.
- In a large bowl, combine the cooked chopped chicken, minced onion flakes, Alfredo sauce, salsa, ricotta cheese, and taco seasoning; stir until evenly mixed.
- Stir the drained pasta into the chicken and sauce mixture until well coated, then spread the mixture into the prepared baking dish.
- Sprinkle the grated Parmesan cheese evenly over the top of the casserole.
- Cover the dish and bake for 50 to 60 minutes, until the casserole is bubbly and heated through.
Notes
- Can make in advance and refrigerate or freeze.
- Thaw completely before baking if frozen.
- Can split between two 8x8-inch baking dishes.
- Use your preferred jarred Alfredo sauce.
- Store-bought salsas like Mateo’s, Kylito’s, or Pace work well.
- Homemade taco seasoning can be used as an alternative.
