Chicken Fajita Casserole

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This creamy chicken fajita casserole has shredded rotisserie chicken, lots of cheese, Campbell’s cream of chicken soup, spices, fresh peppers, and onions. 

Jump to:

• Ingredients
• Homemade Fajita Seasoning
• How To Serve 
• Step By Step Instructions and Photos
• Chicken Fajita Casserole

If you love fajitas this is a creamy cheesy twist on the traditional dish. There is no rice in this casserole so it bakes up super quick in the oven.

This is the perfect comforting dump and bake one pan meal to serve with tortillas for your next weeknight dinner. Made in 30 minutes. 

Ingredients

Chicken -Store-bought rotisserie chicken or leftover cooked chicken. Remove the skin and shred or cut it into chunks. 

Fajita Seasoning - Premixed packets or you can substitute a packet of taco seasoning.

Vegetables - Fresh cut mixed bell pepper and onions.

Condensed Soup - Any brand will do, I chose the Campbell’s cream of chicken. A great substitution would be condensed cheddar cheese soup or homemade from scratch.  

Green Chilies- Canned is a time saver. Substitute poblano peppers or rotel if preferred.  .

Sour Cream - Full-fat or reduced fat variety.

Cheese - Choose your favorite, mild or sharp cheddar, mexican blend or colby jack. 

Shortcuts & Dump and Bake

When I recipe tested this, I could no believe how easy it was to put together. Cutting and prepping the ingredients was the hardest part. 

You can buy pre-shredded fully cooked chicken, frozen peppers, and onions to cut down on the prep time. 

If you really want to make this a dump and bake dinner. Mix right in the baking dish.

Love Casseroles? Check out the Viral Chicken Cobbler, Knorr’s Cheesy Chicken Broccoli Rice Casserole, No Peek Chicken, and Chicken Stuffing Casserole.

Homemade Fajita Seasoning

If you want use your own spices in your cabinet instead of buying a fajita seasoning packet. Try this recipe. 

• 1 tablespoon chili powder 
• 1 ½ teaspoons cumin
• 2 teaspoons smoked paprika
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• ½ teaspoon oregano
• ½ teaspoon salt
• ¼ teaspoon black pepper 

Mix In’s and Variations  

You can easily make this casserole more filling and flavorful with these delicious options. 

• Black Beans
• Pinto Beans
• Roasted Red Peppers
• Chipotle in Adobo 
• Rotel
• Sautéed Mushrooms
• Zucchini 
• Ranch Seasoning
• Fire Roasted Corn
• Chipotle Mayo 

How To Serve 

This creamy fajita casserole can be served over and with these popular options.

• Flour Tortillas (grain-free like almond flour or low-carb high fiber) 
• Corn Tortillas
• Over Yellow Rice
• Tortilla Chips
• Pickled Jalapeños 
• Fresh Jalapeños 
• Cilantro 
• Lime Wedges 
• Salsa or Pico De Gallo
• Sour Cream
• Avocado or Guacomole
• Lettuce
• Queso 
• Sriracha or any Hot Sauce
• Queso Fresco or Cotija Cheese 
• Pita Chips 
• Corn Chips  
• Pasta
• Baked Potatoes
• Oven Fries

Leftovers and Storage

Store the leftovers covered in an airtight container for up to 4 days in the refrigerator.

Reheat easily in the microwave or the oven covered in foil. 

You can freeze the casserole but during thawing the texture may change a bit, because of the dairy-based ingredients. 

Step By Step Instructions and Photos

1. Preheat oven to 375 degrees Fahrenheit.
2. To a mixing bowl add the shredded chicken. For a dump and bake dinner. Mix right in the baking dish.

3. Add the sour cream, creamed soup, fajita seasoning, and green chilies.

4. Mix well.

5. To mixture add 1 cup of shredded cheese, onions, and peppers.

6. Fold in ingredients and mix to combined.

7. In a 9x13 baking dish place the casserole mixture. Spread into an even layer.

8. Cover the baking dish tightly with foil. Place in the oven.

9. Bake for 25 minutes. Remove and carefully uncover the foil.

10. Top with the remaining shredded cheese and place back into the oven. Bake for an additional 5 minutes.

11. Remove from the oven when the cheese has melted nicely. Let cool and sprinkle with cilantro.

12. Serve with soft tortillas or tortilla chips. Enjoy.