Loaded with shredded chicken, black beans, sweet corn, melted cheese, and fresh toppings, this Southwestern Chicken Casserole delivers incredible flavor with minimal cleanup. Naturally gluten-free, rich in protein, and easy to throw together, it is the ultimate stress-free weeknight dinner for feeding a crowd!
Why You’ll Love This Recipe
One-Pan Convenience: Everything bakes together in a single casserole dish for quick prep and easy cleanup.
Packed with Protein: Shredded chicken breast, black beans, and melted cheese provide a hearty, filling meal.
Naturally Gluten-Free: Made with simple, whole-food ingredients without relying on flour or artificial thickeners.
Essential Kitchen Equipment
9×13-inch Baking Dish: Standard deep ceramic or glass casserole pan.
Large Mixing Bowl: For combining the main ingredients before baking.
Meat Shredder or Forks: To shred cooked chicken breast easily.
Ingredients
Casserole Base:
3 cups Cooked chicken breast, shredded (rotisserie chicken works great)
1 can (15 oz) Black beans, rinsed and drained
1 can (15 oz) Sweet corn, drained
1 cup Brown rice or quinoa, cooked
1 cup Salsa or chunky pico de gallo
1/2 cup Plain Greek yogurt or sour cream
1 packet (1 oz) Low-sodium taco seasoning
1 1/2 cups Mexican blend cheese (or cheddar/Monterey Jack), shredded and divided
Fresh Toppings:
1 Fresh avocado, diced
1/4 cup Green onions, chopped
1/4 cup Fresh cilantro, chopped
Extra salsa for serving
Step-by-Step Instructions
Step 1: Prep & Preheat
1. Preheat your oven to 375°F (190°C).
2. Lightly grease a 9×13-inch baking dish with cooking spray.
Step 2: Mix the Casserole
1. In a large mixing bowl, combine the shredded chicken, black beans, sweet corn, cooked rice (or quinoa), salsa, Greek yogurt, taco seasoning, and 1 cup of the shredded cheese.
2. Mix thoroughly until all ingredients are evenly coated.
Step 3: Layer & Bake
1. Transfer the mixture into the prepared 9×13-inch baking dish and spread it into an even layer using a spatula.
2. Top evenly with the remaining 1/2 cup of shredded cheese.
3. Bake uncovered for 20 to 25 minutes, or until the casserole is hot throughout and the cheese is fully melted and bubbly.
Step 4: Top & Serve
1. Remove from the oven and let rest for 5 minutes.
2. Garnish the top with diced avocado, chopped green onions, fresh cilantro, and dollops of extra salsa.
3. Serve warm straight from the pan!
Chef’s Tips
Rotisserie Hack: Use a store-bought rotisserie chicken to cut prep time down to under 10 minutes.
Extra Spice: Mix in a small can of diced green chiles or sliced jalapeños if you prefer more heat.
Nutritional Breakdown (Per Serving)
Servings: 6
Calories: ~380 kcal
Protein: 34g
Net Carbs: 28g
Fat: 12g
Frequently Asked Questions (FAQ)
Can I freeze this casserole?
Yes! Assemble the casserole completely without baking, cover tightly with foil, and freeze for up to 3 months. Thaw in the fridge overnight before baking as directed, adding fresh toppings right before serving.