
This comforting Mexican Chicken Casserole brings together everything I crave in a cozy dinner—melty cheese, tender chicken, a hearty rice base, and bold Southwest flavors. The best part is it all comes together right in one dish, making for a fuss-free meal that always gets cleaned out at my table. I love having something so filling and healthy without spending hours cooking or washing up.
I started making this when I needed dinner ready fast but wanted something more exciting than plain chicken and rice. Once I saw how quickly it disappeared I knew it was a new weeknight favorite.
Ingredients
- White rice: brings substance and soaks up all the delicious juices from the other ingredients choose long grain for a fluffy texture
- Minced garlic: gives a boost of aroma and deep flavor use fresh if you can
- Chopped onion: adds sweetness as it bakes go for white or yellow onions for best results
- Chicken broth: moistens the dish and infuses savory notes opt for low sodium if you want more control over salt
- Chicken breasts: supply lean protein and remain tender in this casserole cut into uniform cubes for even cooking
- Black beans: are classic in Southwest dishes add fiber and earthiness choose cooked or canned beans always rinse and drain
- Frozen corn: delivers a pop of sweetness and color defrost before adding to help it cook evenly
- Jarred salsa: brings the zing pick a favorite spicy or mild depending on your taste chunky salsa is my go to
- Chili powder: provides mild heat and unmistakable Tex Mex flavor check the freshness of your spice for the best punch
- Paprika: adds warmth and a slightly smoky touch use Spanish style if you want extra depth
- Cheddar cheese: tops off everything with gooey richness sharp cheddar melts beautifully for great flavor
Step-by-Step Instructions
- Preheat Oven:
- Set your oven to 350 degrees this ensures even cooking and gooey cheese on top
- Build the Rice Layer:
- Combine uncooked white rice minced garlic chopped onion and chicken broth in a large casserole dish stir thoroughly so the garlic and onion are distributed and the rice is evenly moistened
- Assemble the Toppings:
- Arrange cubed chicken breasts black beans corn salsa chili powder and paprika right on top of the rice layer try to keep the rice covered by the other ingredients so it cooks through and soaks up the flavors
- Add the Cheese:
- Evenly sprinkle the grated cheddar cheese across the top making sure to cover every corner for maximum meltiness
- Bake Covered:
- Cover the casserole dish tightly with foil or a lid and bake for 45 minutes this allows the rice to steam and the chicken to stay juicy
- Finish Uncovered:
- Remove the cover and return the dish to the oven for another 10 minutes watch the cheese bubble and brown creating a delicious crust
- Check for Doneness:
- The casserole is ready when the rice is tender and all the liquid is absorbed let it cool for a few minutes before serving to set the layers

My favorite part is always the cheese layer on top I remember once my cousin tried to sneak some extra crispy corners before dinner and now it is tradition to fight over who gets the edges.
Storage Tips
Leftovers store beautifully in the refrigerator for up to three days covered tightly Use a glass container to avoid any transfer of flavors You can also freeze individual portions just let them thaw overnight before reheating for a quick meal in minutes
Ingredient Substitutions
You can swap brown rice for white if you like a nuttier bite though you might need a little more broth and a longer bake time Rotisserie chicken works great in a pinch and is especially juicy If you do not have cheddar try Monterey Jack or even a blend for something different
Serving Suggestions
I love topping my slice with creamy avocado fresh cilantro and a squeeze of lime A dollop of sour cream or your favorite hot sauce adds extra flair You can even scoop it up with tortilla chips for something fun and casual

Cultural Roots
This casserole is inspired by the layered flavors of southwestern cuisine blending Mexican staples like beans and corn with comforting classics Rice casserole is a weeknight staple in so many kitchens but giving it a Tex Mex spin keeps the dinner table exciting and fresh
Recipe FAQs
- → What type of rice works best in this casserole?
Long grain white rice is ideal as it cooks evenly and stays fluffy when baked with other ingredients.
- → Can I substitute the chicken breasts?
Yes, boneless chicken thighs or cooked shredded chicken can also be used for more flavor or convenience.
- → Is it necessary to drain the black beans before adding?
Draining and rinsing the black beans prevents excess liquid and keeps the casserole from becoming soupy.
- → How can I make this casserole spicier?
Add extra chili powder, diced jalapeños, or use a spicy salsa to turn up the heat.
- → Can I make this dish ahead of time?
You can assemble the casserole up to a day in advance. Refrigerate it covered and bake when ready to serve.
- → What garnishes pair well with this meal?
Try sliced avocado, cilantro, lime wedges, or a dollop of sour cream for added flavor and creaminess.