Chicken Fajitas Casserole

4.67 from 21 votes
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This savory, cheesy Chicken Fajitas Casserole is a staple chicken dinner recipe in our house. It’s such an easy way to make deconstructed chicken fajitas!

For those who love easy Tex-Mex inspired recipes, click over and grab my chicken fajita pasta recipe for a delicious twist on the classic! Also, don’t miss out on my enchilada casserole, packed with layers of seasoned meat, cheese, and enchilada sauce.

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top view of chicken fajita casserole in an oval baking dish topped with melted cheese

I can’t wait for you to taste the rich flavors of our chicken fajitas casserole, brimming with crisp peppers, gooey cheese, and a blend of homemade seasonings. Perfect for those seeking to add some zest to their chicken meals, this recipe transforms ordinary baked chicken breasts into a mouthwatering fajita extravaganza with just a few fresh ingredients.

Why You’ll Love This Chicken Fajitas Casserole

  • Convenient: The recipe offers an easy and quick way to enjoy the flavors of chicken fajitas without the traditional method of cooking and assembling fajitas.
  • Flavorful Twist on a Classic: This fajita casserole transforms the classic chicken fajita flavors into a baked, cheesy dish.
  • Fresh and Wholesome Ingredients: The use of fresh peppers and homemade seasonings ensures a flavorful and wholesome meal, making it a nutritious yet delicious option for those seeking to enhance their chicken dinners with fresh produce and flavors.

Recipe Ingredients

The following simple ingredients create a delicious chicken fajita bake. If you are looking forward to a hearty, cheesy dish, start heading to the grocery store!

  • Baked Chicken Breasts: I recommend making my Juicy Oven Baked Chicken Breasts for the best baked chicken! Or, you can always just use that rotisserie chicken from your local grocery store.
  • Olive Oil: For sautéing the vegetables. Canola oil or vegetable oil can also be used.
  • Red & Green Bell Peppers: Sliced into thin strips, they add fresh flavor and color. Any color bell pepper will work.
  • Yellow Onion: White onion is a good substitute.
  • Cream Cheese: Provides a creamy texture and rich taste.
  • Cheddar Cheese: I love using white and yellow cheddar for this recipe, but you can definitely opt for your favorite shredded cheese.
  • Fajita Seasoning Mix: You can’t go wrong with my 5 Minute Homemade Fajita Seasoning.
  • Fresh Cilantro: Parsley works too! Use your favorite garnish.

How to Make Chicken Fajitas Casserole

This easy-to-make dish combines tender chicken, crunchy vegetables, and creamy cheese for a delightful, baked meal. Follow these simple steps to prepare tonight’s dinner!

  1. Preheat the Oven: Set your oven to 350˚F and lightly grease a 9×13 baking dish with cooking spray.
  2. Shred Chicken: Shred the baked chicken breasts and then transfer to a large mixing bowl; set aside.
  3. Heat Oil: Heat olive oil in a skillet set over medium-high heat.
  4. Cook Peppers & Onions: Add peppers and onions to the hot oil; sprinkle with salt and until softened. Remove from heat and set aside.
  5. Make Seasoning: In a large bowl, combine cream cheese, half of shredded cheese, fajitas seasoning mix, salt, and pepper. Mix until thoroughly combined.
  6. Add to Chicken: Add cream cheese mixture to the chicken and peppers; mix until everything is well combined.
  7. Assemble: Transfer chicken mixture to previously prepared baking dish and sprinkle with remaining shredded cheddar cheese.
  8. Bake: Bake for 25 to 30 minutes, or until hot and bubbly, and cheese is melted.
  9. Garnish & Serve: Remove from oven and garnish with chopped cilantro or parsley.

Recipe Tips

  • Make a homemade seasoning: I highly recommend making an easy fajita seasoning consisting of chili powder, garlic powder, ground cumin, paprika, dried Mexican oregano, salt, and pepper. It only adds a couple of minutes to this fajitas casserole, but the flavor is well worth it.
  • Shred the chicken to your liking: If you want a chunkier chicken casserole, you can cut the chicken breasts into cubes rather than shredding them. It’s completely up to you and your preferences.
  • Use a different protein: You can easily make these chicken fajitas into a meat-lovers dish! Try adding sliced sausage, ham, bacon, or any other meats you love.
close up view of a chicken fajita casserole in a white oval baking dish

Serving Suggestions

This recipe is so versatile, and these Lemon Butter Green Beans or these slow-cooked Green Beans and Tomatoes are great with it. Another classic combination for chicken fajitas is rice. I often pair this recipe with my Instant Pot Mexican Rice or this Creamy Garlic Butter Parmesan Rice. You could also make these fajitas into tacos, burritos, and quesadillas! Don’t forget my Tres Leches Cake for the perfect finish.

How to Store and Reheat Leftovers

  • You can easily store your leftovers in the refrigerator for 3 to 4 days or in the freezer for 1 to 2 months. Thaw before reheating.
  • Reheat individual servings in the microwave to your preferred temperature.

Mexican Inspired Chicken Recipes

4.67 from 21 votes

Chicken Fajitas Casserole

This spicy, savory, and cheesy Chicken Fajitas Casserole is an easy way to make deconstructed fajitas brimming with crisp peppers, gooey cheese, and a blend of homemade seasonings.
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Servings: 4

Ingredients 

  • 1 pound cooked boneless, skinless chicken breasts,, shredded
  • 1 tablespoon olive oil
  • 1 small green bell pepper, sliced into thin strips
  • 1 small red bell pepper, sliced into thin strips
  • 1 small yellow onion, thinly sliced
  • ¼ teaspoon salt
  • 8 ounces cream cheese, softened, cut up into pieces for easier mixing
  • 8 ounces shredded cheddar cheese
  • tablespoons fajita seasoning mix
  • salt and freshly ground black pepper, to taste
  • fresh cilantro or parsley, for garnish
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Instructions 

  • Preheat oven to 350˚F. Lightly grease a 9×13 baking dish with cooking spray; set aside. Shred the baked chicken breasts and then transfer to a large mixing bowl; set aside.
  • Heat olive oil in a skillet set over medium-high heat. Add strips of peppers and onions to the hot oil; sprinkle with salt and cook for 4 to 5 minutes, or until softened. Stir frequently.
  • Remove from heat and add to the chicken. Set aside.
  • In a large bowl combine cream cheese, HALF of shredded cheese, fajitas seasoning mix, salt, and pepper; mix until thoroughly combined.
  • Add cream cheese mixture to the chicken and peppers; mix until everything is well combined.
  • Transfer chicken mixture to previously prepared baking dish and sprinkle with remaining shredded cheddar cheese.
  • Bake for 25 to 30 minutes, or until hot and bubbly, and cheese is melted. Remove from oven and garnish with chopped cilantro or parsley. Serve and enjoy!

Nutrition

Calories: 604kcal | Carbohydrates: 8g | Protein: 42g | Fat: 45g | Saturated Fat: 24g | Cholesterol: 194mg | Sodium: 813mg | Potassium: 661mg | Fiber: 1g | Sugar: 4g | Vitamin A: 2051IU | Vitamin C: 41mg | Calcium: 489mg | Iron: 2mg

Nutritional info is an estimate and provided as courtesy. Values may vary according to the ingredients and tools used. Please use your preferred nutritional calculator for more detailed info.

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63 Comments

  1. Martin Bickerman says:

    I’m confused about the “add the sour cream mixture”. Is it cream cheese or sour cream?

    1. Dawn says:

      After reading earlier comments, it is cream cheese. Directions need to be corrected to reflect that. 🙂

  2. Jo Ann G Cinnamon says:

    I have a bag of frozen fajita chicken. Should I adjust the fajita seasoning?

  3. Judith Goodbar says:

    While reading the instructions to put the ingredients together, #4 says to add sour cream mixture to chicken and peppers. Sour cream is not in the ingredients list. Please let me know what is correct as I would like to make this casserole for my family. Thank you.

    1. Katerina says:

      Hi!
      It’s supposed to be cream cheese mixture, not sour cream mixture. I’ll fix it, asap.

  4. Aiste says:

    5 stars
    Thank you I loved it !!!!

  5. Teresa says:

    Going to make tonight! Could you sub the cream cheese for Greek yogurt?

  6. Karsonella says:

    Thank you for the deliciousness!! I do think it was a a bit petty to go on & on about such a small error. We’re all fully aware & know to use cream cheese. The most important thing is she’s shared such a delightful, absolutely delicious meal that I’m pretty sure we were all looking for. I for one am very grateful! Hats off to the chef. Thank you for the time & consideration you spend for us. 👼

    1. Katerina Petrovska says:

      Thank you so much! I am very happy you loved it!!

  7. Ivory says:

    5 stars
    This recipe has all of my favorites. Thanks for sharing
    Yummy!!!

    1. Katerina Petrovska says:

      Thank YOU! I hope you enjoy it! 🙂

  8. Jenny says:

    I usually make this about once a month. We always look forward to the leftovers, too. I made it per the recipe the first time. From that point forward, I have just winged it. Same ingredients, I just don’t measure anything. This dish is pretty failproof. If you cut up the onions and peppers into smaller and up the cheese and spices, it would make a pretty awesome dip, too.

  9. Sue Tracy says:

    5 stars
    Prepared this casserole with things I had in the fridge and pantry. Adapted it. Used taco seasoning. Used a little more than 1/2 cream cheese in recipe. Added 1/4 store bought salsa to cream cheese. Added 6 sliced garden tomatoes on top and sprinkled cheese on top. Served with tortilla chips that were from an almost empty bag. So good!

  10. Mama moody says:

    5 stars
    Amazing!!

    1. Katerina says:

      Thank YOU! I am very glad you enjoyed it! 🙂