This Mexican chicken casserole is a zesty, crowd-pleasing bake loaded with tender shredded chicken, black beans, corn, and rice, all tucked under a bubbly blanket of cheddar and Monterey Jack. It’s comforting, colorful, and cheesy in all the right ways perfect for busy weeknights, potlucks, or anytime you’re craving Tex-Mex flavor with minimal effort.
Ingredients
- 2 cups cooked chicken, shredded (rotisserie chicken works great)
- 1 can (15 oz) black beans, drained and rinsed
- 1 can (15 oz) corn, drained (or about 1 1/2 cups frozen corn, thawed)
- 1 can (10 oz) diced tomatoes with green chilies (such as Rotel), undrained
- 1 cup salsa (mild, medium, or hot to taste)
- 1 cup cooked rice (white or brown)
- 1 teaspoon ground cumin
- 1 teaspoon chili powder
- 1/2 teaspoon fine salt, or to taste
- 1/4 teaspoon freshly ground black pepper, or to taste
- 1 cup shredded cheddar cheese
- 1 cup shredded Monterey Jack cheese
- 1/4 cup fresh cilantro, chopped, plus extra for serving if desired
Instructions

- Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with cooking spray or a thin coat of oil.
- In a large mixing bowl, combine the shredded chicken, black beans, corn, diced tomatoes with green chilies (with their juices), salsa, cooked rice, cumin, chili powder, salt, and pepper. Stir until everything is evenly coated and well mixed.
- Transfer the mixture to the prepared 9×13-inch baking dish, spreading it into an even layer so it bakes uniformly.
- Sprinkle the shredded cheddar and Monterey Jack cheeses evenly over the top, covering the entire surface of the casserole.
- Cover the baking dish tightly with aluminum foil and bake for 25 minutes, until the casserole is heated through and starting to bubble around the edges.
- Carefully remove the foil and return the dish to the oven. Bake for an additional 10–15 minutes, or until the cheese is fully melted, bubbly, and lightly golden in spots.
- Remove from the oven and let the casserole rest for 5–10 minutes to set slightly. Garnish with chopped fresh cilantro before serving warm.
Variation
- Swap the rice for cooked quinoa or cauliflower rice for a lighter, higher-protein twist.
- Add 1 finely chopped jalapeño or a few dashes of hot sauce to the mixture for extra heat.
- Layer a handful of crushed tortilla chips or a can of drained green chilies underneath the cheese layer for extra crunch and flavor.
Cooking Notes
- If using cold ingredients from the fridge, the casserole may need an extra 5–10 minutes of covered baking time to heat through fully.
- For a slightly crispier, more golden cheese topping, broil the casserole on high for 1–3 minutes at the end—just watch closely to prevent burning.
- If the mixture looks too dry before baking, add a splash (2–4 tablespoons) of chicken broth or extra salsa to keep it moist.
Serving Suggestions
- Serve topped with sliced avocado or guacamole, a spoonful of sour cream or Greek yogurt, and a squeeze of fresh lime juice.
- Pair with a simple side salad of crisp lettuce, tomatoes, and cucumbers for a fresh, crunchy contrast.
- Scoop the casserole into warm tortillas or over a bed of shredded lettuce for a fun burrito-bowl style meal.
Tips
- Shred your own cheese from a block for the best melt and flavor pre-shredded cheese can be a bit drier.
- Taste the mixture before baking (if your chicken is fully cooked) and adjust the salt, pepper, and spices to your liking.
- This casserole is freezer-friendly: assemble, wrap tightly, and freeze before baking; thaw in the fridge overnight and bake until hot and bubbly.
Prep Time:
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
Nutritional Information (Per Serving)
- Calories: 350
- Protein: 25 g
- Sodium: 710 mg
Frequently Asked Questions
- Can I make this casserole ahead of time?
Yes. Assemble it up to a day in advance, cover tightly, and refrigerate. Add 5–10 extra minutes to the covered baking time if starting from cold. - Can I use brown rice instead of white rice?
Absolutely. Use fully cooked brown rice; just note it has a slightly chewier texture and a bit more nuttiness, which works well here. - How do I store and reheat leftovers?
Store cooled leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat individual portions in the microwave or cover the whole dish with foil and warm in a 325°F (165°C) oven until hot. - Can I freeze leftovers?
Yes. Portion into freezer-safe containers and freeze for up to 3 months. Thaw overnight in the fridge, then reheat in the microwave or oven until heated through.
Conclusion
This Mexican chicken casserole is a zesty, one-pan answer to weeknight dinner: tender chicken, hearty beans, sweet corn, and rice all nestled under a blanket of melty cheese. It’s simple to assemble, endlessly adaptable, and loved by kids and adults alike. Bake it for a no-fuss family meal, then enjoy the flavorful leftovers for days.
Print
Mexican Chicken Casserole
- Total Time: 55 minutes
- Yield: 6 servings 1x
- Diet: High-Protein, Gluten-Free (when using gluten-free salsa and ingredients)
Description
This Mexican chicken casserole is a zesty, crowd-pleasing bake loaded with tender shredded chicken, black beans, corn, and rice, all tucked under a bubbly blanket of cheddar and Monterey Jack. It’s comforting, colorful, and cheesy in all the right ways—perfect for busy weeknights, potlucks, or anytime you’re craving Tex-Mex flavor with minimal effort.
Ingredients
- 2 cups cooked chicken, shredded (rotisserie chicken works great)
- 1 can (15 oz) black beans, drained and rinsed
- 1 can (15 oz) corn, drained (or about 1 1/2 cups frozen corn, thawed)
- 1 can (10 oz) diced tomatoes with green chilies (such as Rotel), undrained
- 1 cup salsa (mild, medium, or hot to taste)
- 1 cup cooked rice (white or brown)
- 1 teaspoon ground cumin
- 1 teaspoon chili powder
- 1/2 teaspoon fine salt, or to taste
- 1/4 teaspoon freshly ground black pepper, or to taste
- 1 cup shredded cheddar cheese
- 1 cup shredded Monterey Jack cheese
- 1/4 cup fresh cilantro, chopped, plus extra for serving if desired
Instructions
- Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with cooking spray or a thin coat of oil.
- In a large mixing bowl, combine the shredded chicken, black beans, corn, diced tomatoes with green chilies (with their juices), salsa, cooked rice, cumin, chili powder, salt, and pepper. Stir until everything is evenly coated and well mixed.
- Transfer the mixture to the prepared 9×13-inch baking dish, spreading it into an even layer so it bakes uniformly.
- Sprinkle the shredded cheddar and Monterey Jack cheeses evenly over the top, covering the entire surface of the casserole.
- Cover the baking dish tightly with aluminum foil and bake for 25 minutes, until the casserole is heated through and starting to bubble around the edges.
- Carefully remove the foil and return the dish to the oven. Bake for an additional 10–15 minutes, or until the cheese is fully melted, bubbly, and lightly golden in spots.
- Remove from the oven and let the casserole rest for 5–10 minutes to set slightly. Garnish with chopped fresh cilantro before serving warm.
Notes
- Use pre-cooked rotisserie chicken to save time and add extra flavor to the casserole.
- Make sure your rice is cooked and cooled slightly before mixing so it doesn’t clump together.
- Adjust the heat level by choosing mild, medium, or hot salsa and tomatoes with green chilies.
- The casserole thickens slightly as it rests after baking, which helps it slice and serve neatly.
- Leftovers keep well and often taste even better the next day as the flavors meld.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Main Course, Casserole
- Method: Baking
- Cuisine: Mexican-Inspired, Tex-Mex
Nutrition
- Serving Size: 1/6 of casserole
- Calories: 350
- Sugar: 5 g
- Sodium: 710 mg
- Fat: 15 g
- Saturated Fat: 8 g
- Unsaturated Fat: 6 g
- Trans Fat: 0 g
- Carbohydrates: 30 g
- Fiber: 6 g
- Protein: 25 g
- Cholesterol: 70 mg
Keywords: Mexican chicken casserole, cheesy chicken bake, Tex-Mex casserole, chicken and rice bake, easy weeknight dinner, black bean chicken casserole