This Gooey Keto Chicken Fajita Casserole is Packed with Flavor!
Bake a hearty chicken fajita casserole featuring a rainbow of sautéed peppers and a delicious blend of cheeses and seasonings.
This twist on chicken fajitas needs to be on your dinner table tonight!
I don’t know about you but I can never have enough casseroles in my recipe book. My family requests my chicken fajita casserole often and I sure do enjoy making it. It’s packed with flavor from the various peppers, onions, and a homemade keto fajita seasoning. This low-carb casserole will have you dancing in your seat.
Watch how EASY this chicken fajita casserole is to to make on YouTube!
Give your casserole a kick!
I’m a huge fan of peppers so I used all the colors, but if you aren’t a fan of certain bell pepper varieties, you can double up on the ones you love. Add some fresh sliced avocados or guacamole, and a dollop of sour cream, and your Taco Tuesday will be better than ever!
Keto Chicken Fajita Casserole
yield: 6 SERVINGS
prep time: 40 MINUTES
cook time: 20 MINUTES
total time: 60 MINUTES
This delicious Mexican-inspired keto chicken fajita casserole is filled with peppers, cheese, chicken, and more. A low-carb casserole your entire family will love!
Ingredients
For the fajita seasoning:
- 2 teaspoons chili powder
- 1 teaspoon smoked ground paprika
- 1 teaspoon salt
- 1 teaspoon garlic powder
- 1 teaspoon ground cumin
- 1/2 teaspoon onion powder
- 1/2 teaspoon dried oregano
- 1/4 teaspoon cayenne pepper
- 1/4 teaspoon ground pepper
For the casserole:
- 1 tablespoon olive oil
- 1 green pepper, diced
- 1 red pepper, diced
- 1 yellow pepper, diced
- 1 orange pepper, diced
- 1 medium onion, diced
- 10 oz. can Rotel diced tomatoes and green chilies, undrained
- 4 cups cooked and shredded chicken
- 8 oz. cream cheese, softened
- 8 oz. bag Mexican cheese mix, shredded
Toppings (optional):
- avocado or guacamole
- jalapeño, sliced
- sour cream
Directions
1
Preheat oven to 350 degrees. Grease a 9x13 casserole dish and set aside. Mix all the fajita seasoning ingredients together in a small bowl.
2
In a large skillet over medium heat, add the olive oil, and then sauté the chopped peppers, onions, Rotel tomatoes, and 1 tablespoon of the fajita seasoning for 5 minutes or until tender.
3
In a large bowl, add the shredded chicken, cream cheese, the remaining fajita seasoning, and 1 cup of the shredded cheese. Mix together well.
4
Spread the chicken mixture in the casserole dish. Top with sautéed peppers and onions mix.
5
Add the remaining cup of shredded cheese to the top and place in the oven for 20 minutes to melt the cheese.
6
Serve with all your favorite taco toppings and enjoy!
Nutrition Information
Yield: 6, Serving Size: 1
Amount Per Serving:
407 Calories | 32.1g Fat | 11.7g Total Carbs | 2.8g Fiber | 6.9g Sugar | 19.3g Protein | 8.9g Net Carbs
Tips for making the best keto chicken fajita casserole:
- I bought shredded chicken already cooked from the store for convenience. You can boil chicken breasts instead, and then shred the meat for this recipe.
- I compiled a homemade keto fajita seasoning for this casserole — it really tastes so much better than store-bought. However, if you’re running short on time, feel free to grab a package of your favorite low-carb taco seasoning instead.
- I didn’t drain the can of Rotel tomatoes when adding them to this recipe. By not draining, it really boosts the flavor while achieving the perfect consistency.
A real fiesta for your taste buds!
This keto chicken fajita casserole combines all of my favorite Mexican-inspired flavors into one delicious dish. I love ordering fajitas at restaurants when I go out and I always skip the tortillas to save on carbs. But with this casserole, you won’t even miss them. I gotta tell ya, it’s even better reheated the next day for lunch. 😋
Love Mexican food too? Check out all of our keto Mexican recipes!
Here’s what my teammate Jenna had to say about this recipe:
“This keto chicken fajita casserole is so tasty! I love the fresh-tasting peppers combined with the creamy chicken. The homemade keto taco seasoning really gives it a great flavor, and the cream cheese all mixed in is such a home run. Also, this reheats beautifully, and I may or may not have had some for breakfast the next morning! 😋”
This is awesome over some cauliflower rice.
Yummy! Thanks for the suggestion, Deb!
Thanks so much for letting us know what you thought of it!
I made this for dinner tonight. It was fantastic!
Yay! SO glad to hear how yummy it turned out! Thanks for the feedback!
Love all the recipes!
Thank you for letting us know!
This is delicious.
My husband said last night, “I think this one’s a keeper!” 😋
Yay! SO glad he enjoyed it! 🙌 Thanks a bunch for the update!
Great recipe! I took my leftovers and wrapped them in a low carb burrito and fried it 🤤 I also bought the full star vegetable slicer from this recipe and it was the best decision!!
YAY! SO happy that you loved it! 😋❤️
Would it work to freeze this before baking?
Great question, Karyn! Since the chicken is already cooked for this recipe, you could freeze this before baking, it may just extend the oven cooking time a bit, so you’ll want to check on it throughout to ensure it’s heated through. 🤗
Can this be made in an air fryer? My oven is not working, but my vortex plus will hold 2 – 8×8 casserole dishes. Thank you
Sorry to hear about your oven, Kathy! We haven’t tested this out in an air fryer, but I bet it would be similar! I did search for a conversion of oven to air fryer recipes, and it seems a good rule of thumb is to reduce the suggested temperature by about 25°F and also the cook time by about 20% – about 16 minutes at 325 degrees for this specific recipe. If your air fryer has a pause feature, you might also use that to check for doneness at different intervals. Since the chicken is already cooked/shredded for this recipe (you could opt for a rotisserie chicken to save time too), you’ll just want to be sure everything is melted and heated through. Hope this helps! ❤️