Imagine sinking your teeth into a dish bursting with vibrant Tex-Mex flavors, all baked to perfection in one pan. This Easy Chicken Fajita Casserole brings the sizzle of your favorite fajitas to a comforting, family-friendly bake, making dinner a breeze. It’s the perfect solution for busy weeknights, delivering hearty satisfaction with minimal effort.
Table of Contents
Table of Contents
Ingredients
- 1.5 lbs boneless, skinless chicken breasts, cut into 1-inch pieces
- 1 tablespoon olive oil
- 2 large bell peppers (red, yellow, or orange), seeded and sliced
- 1 medium onion, sliced
- 2 tablespoons fajita seasoning (store-bought or homemade)
- 8 oz cream cheese, softened
- 1/2 cup chicken broth
- 1/2 cup sour cream (or plain Greek yogurt for a lighter option)
- 1/2 cup salsa, mild or medium
- 2 cups shredded Monterey Jack or Mexican blend cheese, divided
- 1/4 cup chopped fresh cilantro, for garnish (optional)
- Salt and freshly ground black pepper to taste
- Optional: Tortilla strips or crushed tortilla chips for topping
Instructions
- Step 1: Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking pan.
- Step 2: In a large mixing bowl, toss the chicken pieces with 1 tablespoon of fajita seasoning, a pinch of salt, and pepper until well coated.
- Step 3: In a separate bowl, whisk together the softened cream cheese, chicken broth, sour cream, and salsa until smooth.
- Step 4: Arrange the seasoned chicken, sliced bell peppers, and onion evenly in the prepared baking pan. Pour the cream cheese mixture over the top, ensuring everything is well coated.
- Step 5: Sprinkle 1.5 cups of the shredded cheese over the casserole.
- Step 6: Bake for 30-35 minutes, or until the chicken is cooked through and the vegetables are tender-crisp. The cheese should be bubbly and lightly golden.
- Step 7: Remove from the oven, sprinkle with the remaining 1/2 cup of cheese and fresh cilantro (if using), and let rest for 5-10 minutes before serving. If desired, add tortilla strips for extra crunch.
Recipe Variations
This Chicken Fajita Casserole is incredibly versatile! For a low-carb version, omit the tortilla strips and serve with cauliflower rice or a large green salad. You could also add a can of drained black beans or corn to the mixture for extra fiber and flavor. Spice things up by adding a diced jalapeño or a pinch of cayenne pepper. Feeling adventurous? Try swapping chicken for thinly sliced beef or ground turkey. If you want to make a truly unique meal, consider our Easy No Peek Chicken Casserole for another one-pan wonder.
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Check price on AmazonPro Tips for Success
Achieving the perfect Chicken Fajita Casserole involves a few simple tricks. Ensure your cream cheese is truly softened to avoid lumps in your sauce – letting it sit at room temperature for at least 30 minutes works wonders. Don’t overcrowd your baking pan; give the ingredients enough space to cook evenly. For uniform pieces and faster cooking, use a sharp knife for chopping your chicken and vegetables. If you like a deeper flavor, consider quickly searing the chicken and vegetables in a skillet for 5 minutes before assembling the casserole, though it’s not strictly necessary for this recipe. Always let the casserole rest after baking; this allows the flavors to meld and the cheese to set, making for easier serving.
Storage and Reheating Instructions
Leftover Chicken Fajita Casserole can be stored in an airtight container in the refrigerator for up to 3-4 days. To reheat, individual portions can be warmed in the microwave until heated through. For larger portions, cover with foil and reheat in an oven preheated to 325°F (160°C) for about 15-20 minutes, or until warm. You can also freeze this casserole! Once completely cooled, transfer it to a freezer-safe container for up to 2-3 months. Thaw overnight in the refrigerator before reheating.

Conclusion
This Chicken Fajita Casserole truly delivers on flavor and convenience, making it a fantastic addition to your weeknight dinner rotation. It’s a vibrant, hearty dish that brings the festive spirit of fajitas to your table with the ease of a casserole. We hope you enjoy this easy-to-make, crowd-pleasing meal that is sure to become a family favorite. For more delicious recipes, check out this Chicken Fajita Casserole Recipe.
Frequently Asked Questions
How do you make chicken fajitas in a casserole?
Making chicken fajitas in a casserole involves combining seasoned chicken, sliced bell peppers, and onions with a creamy, spiced sauce, then baking it all together in a single dish until cooked through and bubbly. It simplifies the traditional skillet method into a convenient, hands-off bake.
Can you put raw chicken in a casserole?
Yes, you can absolutely put raw, cut-up chicken directly into a casserole, especially when it’s mixed with other ingredients and baked at a sufficient temperature for a long enough time. As long as the internal temperature of the chicken reaches 165°F (74°C), it is safe to eat.
What to serve with chicken fajita casserole?
Chicken Fajita Casserole pairs wonderfully with a variety of sides. Consider serving it with warm tortillas, a fresh green salad, cilantro-lime rice, black beans, guacamole, extra salsa, or a dollop of sour cream or Greek yogurt. It’s also delicious on its own as a complete meal.

Easy Chicken Fajita Casserole
- Total Time: 50 mins
- Yield: 6 servings 1x
Description
Enjoy all the sizzling Tex-Mex flavors of classic fajitas baked into one creamy, cheesy, family-friendly casserole-perfect for busy weeknights!
Ingredients
- 1.5 lbs boneless, skinless chicken breasts, cut into 1
- inch pieces
- 1 tablespoon olive oil
- 2 large bell peppers (red, yellow, or orange), seeded and sliced
- 1 medium onion, sliced
- 2 tablespoons fajita seasoning (store
- bought or homemade)
- 8 oz cream cheese, softened
- 1/2 cup chicken broth
- 1/2 cup sour cream (or plain Greek yogurt for a lighter option)
- 1/2 cup salsa, mild or medium
- 2 cups shredded Monterey Jack or Mexican blend cheese, divided
- 1/4 cup chopped fresh cilantro, for garnish (optional)
- Salt and freshly ground black pepper to taste
- Optional: Tortilla strips or crushed tortilla chips for topping
Instructions
- Preheat your oven to 375°F (190°C). Lightly grease a 9×13 inch baking pan.
- In a large mixing bowl, toss the chicken pieces with 1 tablespoon of fajita seasoning, a pinch of salt, and pepper until well coated.
- In a separate bowl, whisk together the softened cream cheese, chicken broth, sour cream, and salsa until smooth.
- Arrange the seasoned chicken, sliced bell peppers, and onion evenly in the prepared baking pan. Pour the cream cheese mixture over the top, ensuring everything is well coated.
- Sprinkle 1.5 cups of the shredded cheese over the casserole.
- Bake for 30–35 minutes, or until the chicken is cooked through and the vegetables are tender crisp. The cheese should be bubbly and lightly golden.
- Remove from the oven, sprinkle with the remaining 1/2 cup of cheese and fresh cilantro (if using), and let rest for 5–10 minutes before serving. Add tortilla strips for extra crunch if desired.
Notes
Pro Tips:
- For a low-carb version, omit the tortilla strips and serve with cauliflower rice or salad.
- Add black beans or corn for extra fiber and flavor.
- Spice it up with jalapeño or cayenne for extra heat.
- Swap chicken for beef or turkey for a tasty variation.
Storage:
- Refrigerate for up to 4 days.
- Freeze for up to 3 months.
- Reheat gently before serving.
- Prep Time: 15 mins
- Cook Time: 35 mins
- Category: Dinner
- Method: Baked
- Cuisine: Tex-Mex
Nutrition
- Serving Size: 1 cup
- Calories: 410
- Sugar: 4g
- Sodium: 710mg
- Fat: 27g
- Saturated Fat: 13g
- Unsaturated Fat: 11g
- Trans Fat: 0g
- Carbohydrates: 10g
- Fiber: 2g
- Protein: 33g
- Cholesterol: 115mg

