Chicken fajita casserole made with shredded chicken, onion, peppers, & spices, has all the deliciousness of fajitas with none of the stress!
Our chicken fajita casserole recipe is about to become your new go-to weeknight casserole! Serve it with easy taco soup, Mexican street corn salad, and a classic margarita!
Chicken Fajita Casserole
Chicken Fajita Casserole
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Chicken Fajita Casserole Ingredients
- Chicken – Cooked and shredded. We used chicken breast but thighs would also be yummy. (Try our instant pot shredded chicken or perfect baked chicken recipe!).
- Bell peppers – Any color bell pepper will work in this recipe, we love it with red, yellow, and orange because they’re so pretty.
- Onion – Sweet yellow onion or white onion. Thinly sliced.
- Cheese – Cream cheese and shredded cheese.
- Fajita seasoning – Make your own with our fajita seasoning recipe or grab some from the market.
- Cilantro – Fresh, for garnish.
- Tortillas – Optional; flour or corn tortillas for serving.
Fajita seasoning, onion, cream cheese, shredded cheese, chicken, peppers.
How do you make chicken fajita casserole? (step-by-step)
⭐ First, in a large bowl, combine the chicken, peppers, onion, cream cheese, fajita seasoning and half of the shredded cheese. Spread mixture into a casserole dish.
⭐ Then, bake until casserole is heated through and bubbling.
⭐ Next, sprinkle the remaining cheese over the top and return to the oven until cheese is melted.
⭐ Finally, top with fresh cilantro and serve with warm tortillas.
Scroll down to the printable recipe card toward the bottom of this article for ingredient measurements and detailed cooking instructions.
Mix ingredients in a large bowl, then spread into casserole dish. Bake, then add more cheese and continue baking.
Preparation
Can you make chicken fajita casserole ahead of time?
Yes, this can be prepared and stored in the refrigerator for 1 – 2 days or in the freezer for several months.
What vegetables can I add?
Adding extra veggies to your casserole is a great way to bulk up your dish and make it healthier.
Try adding mushrooms, diced tomatoes, zucchini, and even chopped spinach!
Top with fresh cilantro or other fajita favorites.
Leftovers and storage
How long does a chicken fajita casserole last?
The leftovers will keep in the refrigerator for 3 – 4 days. Keep in an air tight container for best results.
Can you freeze it?
Yes! Allow the casserole to cool to room temperature then store in a freezer safe, air tight container for up to 3 months.
Can you bake a casserole from frozen?
To bake from frozen, preheat the oven and bake the casserole covered with foil for 60 minutes. Remove foil and continue baking as directed in the original recipe.
Make sure if you are baking from frozen that your dish is freezer to oven safe, not all glass and ceramic dishes are.
Alternatively, thaw in the refrigerator and bake according to original recipe directions.
If you like your cheese browned, leave it in an extra 5 – 10 minutes, but watch closely!
Tips, tricks, and frequently asked questions
✅ Make it spicy by adding chipotle powder or diced jalapenos.
✅ Try with other meats like leftover grilled steak, grilled pork chops, or even ground beef.
✅ Top with favorites like black olives, sliced avocado, homemade pico de gallo, and black beans.
Serve as-is or on a tortilla or over rice!
What to eat with fajita casserole (serving suggestions)
Enjoy this dish with flour tortillas, your favorite toppings, and a side of Mexican street corn, black bean soup, and peanut butter pie for dessert!
We used colby-jack cheese here, but Mexican blend cheese is also a great option.
More delicious Mexican inspired recipes
- Steak tostadas
- Mexican street corn
- Cilantro lime chicken
- Easy burrito bowls
- Taco soup
- See all our Mexican inspired recipes!
Mmmmm, so cheesy!
Other casseroles you’ll love
- Upside down pizza
- Broccoli casserole
- Pork and beans casserole
- Chicken cordon bleu casserole
- Chili cornbread casserole
- See all our dinner casserole recipes!
Do you prefer flour tortillas or corn tortillas?
Tools we love
- Glass casserole dish with lid – I love this dish, it can go from freezer to oven!
- Metal spatula – We like a metal spatula for getting lots of cheesy chicken and peppers.
😍😍😍
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How to Make Chicken Fajita Casserole
Chicken Fajita Casserole
Ingredients
- 3 cups cooked shredded chicken (this is about the equivalent of 2 pounds uncooked boneless skinless chicken)
- 3 bell peppers thinly sliced, various colors
- 1 small yellow onion thinly sliced
- 8 ounces cream cheese softened
- 2 cups shredded cheese colby jack or Mexican blend
- 2 tablespoons fajita seasoning (or 1 store bought packet)
- cilantro for garnish
- optional, for serving: flour tortillas, rice, desired toppings
Instructions
- In a large bowl, combine the chicken, peppers, onion, cream cheese, fajita seasoning and half of the shredded cheese. Spread mixture into a 9x13 inch casserole dish.
- Bake uncovered at 350°F for 20 minutes.
- Sprinkle the remaining 1 cup of cheese over the top and return to the oven for another 5 minutes, until cheese is melted.
- Sprinkle with cilantro, if desired. Serve with tortillas or rice.
Notes
Nutrition
Chicken Fajita Casserole
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Kristyn says
One of my favorites in casserole…yes, please!! Packed with flavor, this dish is a family favorite!
Anna says
I knew this casserole would be good so I made two! One is in the freezer and the other we just devoured for dinner. Thank you for the recipe!
Natasha says
Absolutely the best Fajita Casserole I have ever made or eaten. I’ve made them a couple of times now and everybody raved about them.
Deb says
Like another reader, I knew this would be good, so I made 2. I used disposable pans (easy), and heated the peppers/mushrooms with some of the fajita seasoning. I mixed the rest of the seasoning in with the cream cheese before combining with meat, etc.
I layered it like a lasagna with larger, burrito sized tortillas. Baked it 45 min with foil on top, then 10 minutes without the foil. It crisped up the top tortilla with cheese topped. YUMMMMMY!!! Beef OR Chicken should work! THANKS~!!!!!!