Chicken Fajita Casserole

A delightful fusion of classic fajita flavors and a comforting casserole, this dish combines tender chicken thighs with vibrant bell peppers, onions, and spices, all layered with corn tortillas and melted cheese. It’s an easy, one-skillet meal perfect for any night of the week.

Why You’ll Love This Recipe

  • One-pan convenience – All ingredients cook together in a single skillet, making cleanup easy.
  • Bold flavors – The combination of fajita spices, lime juice, and cheese brings a burst of flavor in every bite.
  • Quick and simple – With just 45 minutes from start to finish, it’s a fast meal for busy nights.
  • Comforting yet light – The casserole is hearty without being heavy, thanks to the tender chicken and fresh veggies.
  • Family-friendly – The cheesy, spicy goodness is a hit with both kids and adults alike.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

  • Avocado oil
  • Red bell pepper, sliced
  • Yellow bell pepper, sliced
  • Medium onion, sliced
  • Chili powder
  • Ground cumin
  • Garlic powder
  • Salt
  • Ground black pepper
  • Cooked chicken thighs, sliced
  • Lime juice
  • Corn tortillas, cut into strips
  • Shredded Mexican cheese blend

Directions

  1. Preheat oven to 400°F (200°C).
  2. Heat 1 tablespoon of avocado oil in a large ovenproof skillet over medium-high heat. Add the sliced bell peppers and onion; cook, stirring occasionally, until softened, about 5 minutes.
  3. In a small bowl, combine chili powder, cumin, garlic powder, salt, and black pepper. Sprinkle the spice mixture over the cooked vegetables and stir to coat evenly.
  4. Add the cooked chicken slices to the skillet and stir in the lime juice. Cook for an additional 2 minutes to heat through.
  5. Remove the skillet from heat. Layer the tortilla strips over the chicken and vegetable mixture, then drizzle with the remaining 2 tablespoons of avocado oil.
  6. Sprinkle the shredded cheese evenly over the top.
  7. Transfer the skillet to the preheated oven and bake until the cheese is melted and bubbly, about 10 minutes.
  8. Remove from the oven and let it rest for 5 minutes before serving.

Servings and Timing

  • Prep Time: 15 minutes
  • Cooking Time: 30 minutes
  • Total Time: 45 minutes
  • Servings: 4 servings
  • Calories: Approximately 450 kcal per serving

Variations

  • Add extra veggies – Feel free to add zucchini, corn, or mushrooms for more texture and flavor.
  • Make it spicier – Add diced jalapeños or a sprinkle of cayenne pepper to kick up the heat.
  • Use a different protein – Swap chicken for ground beef, turkey, or even shrimp for variety.
  • Cheesy twist – Add a layer of melted cheese under the tortillas for extra cheesy goodness.
  • Gluten-free – Ensure your corn tortillas are gluten-free to make this dish suitable for those with dietary restrictions.

Storage/Reheating

  • Refrigeration: Store leftovers in an airtight container in the fridge for up to 3 days.
  • Freezing: Freeze individual portions in airtight containers for up to 2 months. Thaw overnight in the fridge before reheating.
  • Reheating: Warm in the microwave for 1-2 minutes or reheat in the oven at 350°F for about 10 minutes until heated through.

FAQs

Can I use chicken breast instead of thighs?

Yes, you can use chicken breast, but thighs add more flavor and tenderness. Adjust cooking times as needed.

Can I use flour tortillas instead of corn tortillas?

Yes, you can substitute flour tortillas, but corn tortillas give a more authentic fajita flavor and texture.

Can I make this casserole in advance?

Absolutely! Assemble the casserole, cover, and refrigerate for up to 24 hours before baking.

How do I make this dish spicier?

Add diced jalapeños, a sprinkle of cayenne pepper, or use spicy chili powder for a hotter version.

What can I serve with this casserole?

Pair with sour cream, guacamole, or a fresh salad for a complete meal.

Can I make this casserole without cheese?

Yes! Simply omit the cheese for a lighter version of the dish. You can also top it with avocado slices for added creaminess.

Can I cook this in a regular skillet?

Yes, as long as it’s ovenproof. If not, transfer the casserole to a baking dish before baking.

What if I don’t have an ovenproof skillet?

Use a regular skillet to cook the filling, then transfer it to a baking dish before adding the cheese and baking.

Can I use pre-cooked chicken?

Yes, pre-cooked chicken works perfectly. Just add it in when the vegetables are cooked to save time.

How can I make this dish vegetarian?

Skip the chicken and use extra beans, tofu, or sautéed vegetables for a vegetarian alternative.

Conclusion

Chicken Fajita Casserole is a deliciously easy meal that combines the vibrant flavors of fajitas with the comforting, cheesy goodness of a casserole. Perfect for busy weeknights, this one-skillet dish is sure to satisfy your craving for a hearty, flavorful meal. Try it tonight and enjoy a Tex-Mex twist on classic comfort food!

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Chicken Fajita Casserole

Chicken Fajita Casserole

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This Chicken Fajita Casserole is a one-skillet meal combining the bold flavors of fajitas with the comforting layers of a cheesy casserole. Tender chicken thighs, bell peppers, onions, and corn tortillas come together in this quick and easy dish, perfect for weeknight dinners or family gatherings.

  • Total Time: 45 minutes
  • Yield: 4 servings

Ingredients

  • 1 tbsp avocado oil
  • 1 red bell pepper, sliced
  • 1 yellow bell pepper, sliced
  • 1 medium onion, sliced
  • 1 tbsp chili powder
  • 1 tsp ground cumin
  • 1 tsp garlic powder
  • ½ tsp salt
  • ½ tsp ground black pepper
  • 2 cups cooked chicken thighs, sliced
  • 1 tbsp lime juice
  • 4 corn tortillas, cut into strips
  • 1 ½ cups shredded Mexican cheese blend

Instructions

  • Preheat oven to 400°F (200°C).
  • Sauté vegetables: Heat 1 tbsp avocado oil in a large ovenproof skillet over medium-high heat. Add the bell peppers and onions and cook, stirring occasionally, until softened (about 5 minutes).
  • Add spices: In a small bowl, mix chili powder, cumin, garlic powder, salt, and black pepper. Sprinkle over the vegetables and stir to coat evenly.
  • Add chicken: Stir in the cooked chicken slices and lime juice. Cook for 2 more minutes to heat through.
  • Layer tortillas and cheese: Remove from heat and layer the tortilla strips over the chicken mixture. Drizzle with 2 tbsp of avocado oil and top with shredded cheese.
  • Bake: Transfer the skillet to the oven and bake for 10 minutes or until the cheese is melted and bubbly.
  • Serve: Let the casserole rest for 5 minutes before serving

Notes

  • Extra veggies: Feel free to add zucchini, mushrooms, or corn for more texture and flavor.
  • Spicy version: Add diced jalapeños or cayenne pepper for extra heat.
  • Different proteins: Try ground beef, turkey, or shrimp for variety.
  • Cheesy twist: Add a layer of cheese under the tortillas for extra cheese indulgence.
  • Gluten-free: Ensure your corn tortillas are gluten-free for a suitable option for those with dietary restrictions.
  • Storage: Store leftovers in an airtight container for up to 3 days, or freeze for up to 2 months.
  • Author: Sophia
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Main Course
  • Method: Skillet
  • Cuisine: Tex-Mex
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