Step-by-step instructions
Now that you have your ingredients, it’s time to dive into the cooking. Follow these easy steps to put together your Mexican Chicken Casserole:
- Preheat your oven to 375°F (190°C).
- Heat the olive oil in a large skillet over medium heat. Add the chopped onion and garlic; sauté until soft and fragrant, about 3-4 minutes.
- Stir in the ground cumin, chili powder, salt, and pepper. Cook for another minute to toast the spices.
- In a large mixing bowl, combine the shredded chicken, cooked rice, black beans, corn, diced tomatoes with green chilies, the sautéed onion mixture, sour cream, and salsa. Mix well until all ingredients are evenly incorporated.
- Spread half of the chicken mixture evenly in a greased 9×13-inch baking dish.
- Sprinkle half of the shredded cheddar and Monterey Jack cheeses over the mixture.
- Layer the remaining chicken mixture on top, then finish with the remaining cheese.
- Cover with foil and bake for 25 minutes. Remove the foil and bake for an additional 10 minutes or until the cheese is melted and bubbly.
- Let the casserole rest for 5 minutes before serving. Garnish with fresh chopped cilantro.
Best ways to enjoy it
When it comes to serving, there are numerous delightful options! You can pair the casserole with a fresh side salad tossed with lime vinaigrette, or offer some warm tortilla chips with salsa for a satisfying crunch. For a creamier touch, consider topping the casserole with avocado slices or a dollop of guacamole. And don’t forget some margaritas for the perfect celebratory drink!
Keeping leftovers fresh
Storing your leftovers is also a breeze. Allow the casserole to cool to room temperature before covering it tightly with plastic wrap or aluminum foil. You’ll want to keep it in the refrigerator, where it will stay fresh for about 3-4 days. If you want to make it last longer, you can freeze portions in airtight containers for up to 3 months. Just remember to label your containers!
Helpful cooking tips
For a seamless cooking experience, here are a few handy tips:
- Cook your chicken in advance. Rotisserie chicken is a fantastic option for ease and flavor.
- For some extra spice, add sliced jalapeños to the casserole mixture or sprinkle them on top before baking.
- Experiment with different types of cheeses if you’re feeling adventurous! Pepper Jack adds a nice kick.
Creative twists
Feel free to get creative with this recipe! Try adding diced bell peppers or zucchini for more vegetables. If you’re looking for a gluten-free version, make sure to use rice labeled gluten-free and watch for any gluten-containing ingredients in your canned goods. Craving a vegetarian delight? Replace the chicken with additional beans or sautéed mushrooms.

FAQ
What is the prep time for Mexican Chicken Casserole?
The prep time for this casserole is roughly 15-20 minutes, plus an additional 35-40 minutes for baking.
Can I make the casserole ahead of time?
Absolutely! You can prepare the casserole a day in advance, cover it, and store it in the refrigerator until you’re ready to bake.
Is it safe to freeze the leftovers?
Yes, this casserole freezes well! Just make sure to store it in an airtight container, and it should last for up to 3 months in the freezer.
Can I substitute the chicken?
Definitely! Shredded turkey or even beans, if you’re going vegetarian, work great. Just adjust the cooking times accordingly if using raw meat.
Creating this Mexican Chicken Casserole isn’t just about the meal; it’s an experience filled with flavor and satisfaction. So gather your ingredients, and let’s get cooking!






