Introduction

Fiesta Chicken Casserole is a flavorful and comforting dish that brings together tender chicken, zesty salsa, and creamy cheese baked to perfection. It’s an easy, crowd-pleasing meal perfect for weeknight dinners or casual gatherings.

Fiesta Chicken Casserole Recipe - Recipe Image

Ingredients

2½ cups uncooked rotini pasta
1 cup sour cream
1 cup salsa
1 packet mild taco seasoning
½ teaspoon cumin
½ teaspoon garlic powder
½ teaspoon onion powder
1 can (15 oz) corn, drained
1 can (15 oz) black beans, drained and rinsed
2½ cups cooked chicken
2 cups shredded cheese, divided

Instructions

Step 1: Preheat your oven to 350°F (175°C). Spray a 9×13-inch baking dish with cooking spray and set it aside.
Step 2: Cook the rotini pasta according to the package instructions until al dente. Be sure to salt the pasta water with about 1 teaspoon of salt for flavor.
Step 3: While the pasta cooks, combine sour cream, salsa, taco seasoning, cumin, garlic powder, and onion powder in a large mixing bowl.
Step 4: Drain the pasta without rinsing and immediately add it to the sour cream mixture. Stir well to combine. Then fold in the corn, black beans, cooked chicken, and 1 cup of shredded cheese.
Step 5: Transfer the mixture into the prepared baking dish. Sprinkle the remaining shredded cheese evenly on top. Cover the dish with tin foil and bake for 20 minutes.
Step 6: Remove the foil and bake for an additional 5 minutes to brown the cheese slightly. Garnish with additional sour cream, diced tomato, chopped cilantro, and avocado slices if desired before serving.

Tips & Variations

For added heat, use medium or hot salsa and taco seasoning or add a few dashes of hot sauce to the sour cream mixture.
Swap rotini for elbow macaroni or penne if preferred.
Use grilled or rotisserie chicken for convenience and extra flavor.
For a vegetarian option, omit the chicken and add extra beans or sautéed veggies.

Storage

Store leftovers covered in the refrigerator for 3 to 4 days. Reheat in the microwave or oven until warmed through. If baking again, cover with foil to prevent drying out.

How to Serve

Serve this delicious recipe with your favorite sides.

FAQs

Can I prepare this casserole ahead of time?

Yes, you can assemble the casserole and refrigerate it for up to 24 hours before baking. Just add a few extra minutes to the baking time if baking from cold.

What type of cheese works best for this dish?

A mild cheddar or a Mexican blend of cheeses melts well and complements the flavors nicely, but feel free to use your favorite shredded cheese.

Fiesta Chicken Casserole Recipe

Print Recipe

★★★★★

4.5 from 88 reviews

Fiesta Chicken Casserole is a vibrant and hearty baked dish combining tender rotini pasta, seasoned cooked chicken, black beans, corn, and a creamy salsa-based sauce, all topped with melted cheese. This flavorful casserole is perfect for a family-friendly meal with a festive southwestern twist.

Author: Dylan
Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Yield: 6 servings 1x
Category: Casserole
Method: Baking
Cuisine: Mexican-inspired
Diet: Halal

Ingredients

Scale

Pasta

2½ cups uncooked rotini pasta

Sauce & Seasoning

1 cup sour cream
1 cup salsa
1 packet mild taco seasoning
½ teaspoon cumin
½ teaspoon garlic powder
½ teaspoon onion powder

Vegetables & Beans

1 can (15 oz) corn, drained
1 can (15 oz) black beans, drained and rinsed

Protein & Cheese

2½ cups cooked chicken, shredded
2 cups shredded cheese (cheddar or Mexican blend)

Optional Garnishes

Sour cream
Diced tomato
Chopped cilantro
Avocado slices

Instructions

Preheat and Prepare Baking Dish: Heat your oven to 350°F (175°C). Lightly spray a 9×13 inch baking dish with cooking spray and set it aside.
Cook Pasta: Bring a large pot of salted water to a boil (about 1 teaspoon salt). Add the rotini pasta and cook until al dente according to the package instructions. Drain the pasta but do not rinse it, so it retains some starch for better sauce adherence.
Mix Sauce Ingredients: While pasta cooks, in a large mixing bowl combine sour cream, salsa, mild taco seasoning, cumin, garlic powder, and onion powder. Stir until fully blended to create the creamy sauce.
Combine Pasta and Mix-Ins: Add the drained pasta into the sauce mixture. Stir thoroughly. Then, fold in the drained corn, rinsed black beans, cooked shredded chicken, and 1 cup of the shredded cheese. Mix until evenly combined.
Bake the Casserole: Pour the mixture into the prepared baking dish. Sprinkle the remaining 1 cup of shredded cheese evenly over the top. Cover the dish with aluminum foil and bake for 20 minutes.
Finish Baking: Remove the foil and continue baking for an additional 5 minutes to allow the cheese to brown and bubble slightly.
Garnish and Serve: Optionally garnish the casserole with sour cream, diced tomato, chopped cilantro, and avocado slices before serving. Store any leftovers covered in the refrigerator for 3-4 days.

Notes

Salting the pasta water is important for flavor.
Do not rinse cooked pasta to help sauce stick better.
Use cooked chicken that is shredded or chopped for best texture.
Leftovers store well refrigerated for up to 4 days.
Feel free to customize toppings like adding jalapeños or hot sauce for more heat.

Keywords: Fiesta Chicken Casserole, rotini pasta casserole, Mexican chicken bake, taco seasoning casserole, easy chicken dinner