This Chicken Fajita Casserole is a perfect blend of Mexican-inspired ingredients and cheesy goodness, all baked to perfection in your oven.
It is extremely easy to assemble and bakes in only 30 minutes. Plus, it’s so versatile.
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Why this Chicken Fajita Casserole Recipe is a Keeper
The Mexican Chicken Bake is a guaranteed crowd-pleaser. It’s perfect for feeding a family, potlucks, or casual get-togethers. So next time you’re looking for a quick, easy, and flavorful weeknight meal, give this Chicken Bake a try.
- 30 Minute Meal: A warm, delicious meal in minutes.
- Easy Ingredients: All found in pantry or fridge this chicken fajita casserole combines all your favorite fajita favors.
- Family Friendly:Because it is so customizable, it is a family favorite. I make this chicken fajita casserole for the often.
- Adaptable: Can make it with so many sides and toppings, it makes everyone satisfied. Try using boneless skinless chicken thighs or add chicken that you have on hand.
If you’re looking for more casserole recipes, try these Chicken Cobbler Casserole, Leftover Thanksgiving Casserole | It Is a Keeper and Upside Down Pizza Casserole.
How can I use this Fajita Chicken?
I like to serve it over rice or sometimes, I slice the chicken and serve it on a tortilla for Taco Tuesday. You can serve it with your favorite sides, like black beans, Mexican cooked rice or shred the chicken and use it on tostadas. For a keto option try serving it with low carb cauliflower rice or brown rice.
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Fajita Casserole Ingredient Notes
This easy chicken fajita casserole recipe uses all the classic fajita flavors, chicken, onions and peppers.
- Boneless skinless chicken breast: You can also use chicken that you already cooked for this recipe or buy a rotisserie chicken.
- Fajita Seasoning: Use your favorite fajita seasoning from the store or try this homemade recipe.
- Vegetables: Try some classic flavors of onions and peppers, and diced tomatoes.
See the recipe card below for a complete list of the ingredients with measurements.
Variations and Substitutions for This Chicken Fajitas Dish
There is no need to follow the recipe exactly. You can make this casserole with other fajita veggies and add some delicious extras such as:
- Different Peppers: Use a hot and spicy pepper or more bell peppers.
- Cheese: Pepper jack cheese or Cojita cheese or cream cheese is great for this recipe.
- Cook Chicken: Reheat in a skillet or in the oven. Cover with more shredded cheese. You can cook the chicken in advance. Add in the cooked chicken to the vegetables.
- Serve: Serve with wild rice for cauliflower rice or whatever side you prefer.
Special Equipment Needed for this Easy Chicken Fajita Casserole
- Casserole Dish: A good qulity dish will allow for even cooking of this easy recipe.
- Meat thermometer: It is imperative to make sure that the chicken is cooked through.
Pro Tip to Love this Recipe
By layering your ingredients, you ensure everything gets equal exposure to the heat. Denser ingredients like proteins can go on the bottom, while vegetables and starches can be placed higher up.
How to Make Fajita Keto Chicken Casserole
You can use the chicken breasts whole pr use the shredded chicken in your favorite recipe. You will love this recipe due to it’s versatility.
These are the basic steps for making this recipe for keto chicken. Refer to the full, printable recipe card below for detailed instructions for this delicious and easy low carb chicken dish. Your family will thank you for the recipe. We love reader interactions, please let us kow if you try it.
1. Prep the Keto Chicken
Preheat the oven and spray your baking dish. Next, lay the raw chicken breasts in a single layer in a baking dish. Season each chicken breast evenly with Taco Seasoning.
2. Add the Tomatoes and Chiles
Then pour diced tomatoes and diced green chiles over top. Spread sliced bell peppers and onions evenly on top of the chilies and tomatoes.
3. Cheese on Top and Bake until Hot and Bubbly
Finally, top everything with an even layer of shredded Monterey Jack cheese and Cheddar cheese. Bake for 30 minutes or until chicken reaches an internal temperature of 165 degrees and the cheese is melted. Serve with flour tortillas.
Low Carb Chicken Fajitas Casserole Recipe FAQs
Store leftover chicken fajita casserole in the fridge in an airtight container. The veggies and chicken will last for 3 to 5 days.
Yes, freeze individual portions, or make a whole other bake and freeze the chicken and peppers for a future quick dinner.
Of course, use boneless chicken thighs or precooked chicken with the classic fajita veggies. Or instead of the chicken mixture use beef or turkey so that the whole family will love. This casserole is the perfect make ahead meal.
Expert Tips for Making This Fajita Chicken Casserole Dish
Make this chicken fajita bake your own with homemade fajita seasoning. This healthy chicken fajita is so amazing.
- Spicy Poblano Bake: Roast poblano peppers and add them to the chicken mix for a smoky and slightly spicy flavor.
- Make Minis: Make and bake smaller individual portions of the flavorful chicken for meal prep or to take to work or school.
- Layer: Layering your ingredients ensures even distribution of flavors and textures.
- Top it off: Once your casserole is baked, get creative with the toppings! Chopped avocado, fresh cilantro, more cheese and sour cream, salsa, and crumbled queso fresco are all delicious options for seasoned chicken. While the casserole baking you can prep your toppings.
What to Serve with Favorite Fajita Flavor Recipes
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Chicken Fajita Casserole
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Ingredients
- 4 Chicken breast , boneless, skinless
- 1 tablespoon Fajita Seasoning
- 2 Bell peppers, seeded and sliced thin
- 1 Onion, sliced thin
- 15 ounces Tomatoes, diced
- 4 ounces Green chilies, diced
- ½ cup Monterey jack cheese, shredded
- ½ cup Cheddar cheese, shredded
Instructions
- Preheat oven to 375 degrees.
- Lay the chicken breasts in single layer in a baking dish
- Season each chicken breast evenly with Taco Seasoning
- Pour diced tomatoes and diced green chiles over top
- Spread sliced bell peppers and onions evenly on top of the chilies and tomatoes
- Top everything with an even layer of shredded cheese.
- Bake for 30 minutes or until chicken reaches an internal temperature of 165 degrees.
Christina’s Notes
- Spicy Poblano Bake: Roast poblano peppers and add them to the chicken mix for a smoky and slightly spicy flavor.
- Make Minis: Make and bake smaller individual portions for meal prep or to take to work or school.
- Layer: Layering your ingredients ensures even distribution of flavors and textures.
- Top it off: Once your casserole is baked, get creative with the toppings! Chopped avocado, fresh cilantro, more cheese and sour cream, salsa, and crumbled queso fresco are all delicious options for seasoned chicken.
For more helpful information about this recipe, such as variations, substitutions and other pro-tips, scroll up on the page.
Nutrition
The nutritional information provided are estimates. To learn more about how I calculate this information go to www.itisakeeper.com/about-its-a-keeper/privacy-disclosure-policies/
We love honest feedback, but to keep reviews helpful for everyone, we reserve the right to remove star ratings if it is clear the recipe has not been made, if the comment does not provide meaningful input, or if significant substitutions or alterations were made. Please note that ratings should reflect the original recipe as written to avoid confusing other readers.
This recipe is my personal adaption of an ethnic-inspired recipe. It is not intended to be an authentic recipe. I’ve recreated this recipe because I enjoy the flavors and I want to encourage my readers to expand their tastes and try new flavor combinations. The recipe, ingredients, and processes may have been adapted to make the recipe accessible to the average American. I have provided links to authentic versions of the recipe in the post above. I encourage you to visit these pages and learn more about the traditional version(s) of this recipe.