If you're craving the spicy sizzle of a fajita, but the thought of an involved cooking process has you reaching for takeout menus, your culinary salvation might just be a chicken fajita casserole. This dish takes all the beloved flavors of chicken fajitas and turns them into a versatile, and easy-to-make casserole. Whether you're cooking for your family, preparing meals for the week, or hosting a casual dinner party, this casserole is sure to satisfy your Tex-Mex cravings.

Chicken Fajita Casserole

Ingredients List

Before we jump into the kitchen, it's best to have all your ingredients at hand. Here's what you'll need for this savory casserole:

For the Fajita Seasoning:

  • 1 tablespoon chili powder
  • 1 teaspoon paprika
  • 1 teaspoon cumin
  • 1 teaspoon onion powder
  • 1 teaspoon garlic powder
  • 1 teaspoon oregano
  • 1 teaspoon salt
  • ½ teaspoon black pepper

For the Casserole:

  • 2-3 boneless, skinless chicken breasts, diced
  • 3 bell peppers, sliced (use a variety of colors for presentation)
  • 1 large onion, sliced
  • 2 tablespoons olive oil
  • 2 cups cooked rice (optional, for layering and serving)
  • 2 cups shredded cheddar or Mexican blend cheese
  • Chopped fresh cilantro, for topping (optional)
  • Sliced avocado or guacamole, for topping (optional)

Step-by-Step Instructions

Prepare the Fajita Seasoning

  1. In a small bowl, mix all the fajita seasoning ingredients. You can adjust the seasoning to your taste, adding more heat with extra chili powder or a pinch of cayenne pepper if you like it spicy.

Cook the Chicken and Veggies

  1. Preheat your oven to 375°F (170°C).
  2. Heat 1 tablespoon of olive oil in a large skillet over medium-high heat. Add the diced chicken and sprinkle about half of the fajita seasoning on top. Cook until the chicken is no longer pink in the center, about 7-8 minutes. Remove the chicken from the skillet and set it aside.
  3. In the same skillet, add the remaining tablespoon of olive oil. Add the sliced bell peppers and onions, and sprinkle with the rest of the fajita seasoning. Saute until the veggies are softened and start to caramelize about 10-12 minutes.

Layer the Casserole

  1. Lightly grease a 9x13-inch casserole dish. Layer the cooked rice on the bottom, if using.
  2. Spread the cooked chicken over the rice, then layer the sautéed vegetables on top of the chicken.
  3. Sprinkle the shredded cheese evenly over the top of the casserole.

Bake the Casserole

  1. Cover the casserole dish with foil and bake for 20 minutes. Remove the foil and bake for an additional 5-10 minutes, or until the cheese is bubbly and golden brown.

Serving Suggestions

Once your chicken fajita casserole is beautifully baked and ready to go, the serving possibilities are endless. You can serve it as is, over a bed of lettuce for a fajita-inspired salad, or with a side of your favorite rice or beans. For an extra indulgence, top it with a dollop of sour cream, some fresh guacamole, and a sprinkle of cilantro.

Storage and Reheating Tips

If you have any leftovers, the fajita casserole keeps well in the fridge for up to three days. Simply store it in an airtight container. To reheat, place a portion in the microwave and heat on medium for a few minutes, or in the oven at 350°F (180°C) until warmed through.

Remember, always enjoy your meals within the recommended time to guarantee the best taste and quality.


This flavorful, hearty, and comforting chicken fajita casserole is a winner in the home kitchen. It's a dish that truly encapsulates the convenience and satisfaction of a well-prepared meal. Share this guide with friends and family, and encourage them to try out this recipe. Happy cooking, and bon appétit!

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