Cheesy Keto Chicken Fajita Casserole

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  • prep time

    prep time

    10 min

  • cook time

    cook time

    35 min

  • ready time

    ready time

    45 min

Cheesy Keto Chicken Fajita Casserole

51 ratings

If you are a fan of Keto chicken fajitas, then you will LOVE this cheesy casserole version. It is saucy, cheesy, and mouthwatering. This recipe is perfect for beginner cooks and only needs 10 minutes of active work. The ingredients for this low-carb casserole are similar to any other Keto Fajitas. It starts with a base of protein, in this case, grilled chicken mixed with cream cheese. It is then topped with sauteed onions and peppers and sprinkled with tasty Mexican blend shredded cheese.

This fajita casserole recipe is a huge crowd-pleaser. It is a perfect addition to your gatherings and home parties. This recipe serves 4 people, but you can double or triple it to feed more.

Are fajitas Keto?

The short answer is yes; fajitas are Keto, but this depends on the ingredients used and their quantities. For example, onions are a staple ingredient for making fajitas; however, they are very high in carbs and must be used in small amounts. Another ingredient to look out for when making fajitas is seasoning. Store-bought taco or fajita seasoning often contains high-carb filler ingredients such as cornstarch. The best option would be to make your seasoning mix from scratch or add each ingredient separately, as we did in this recipe.

Can you use rotisserie chicken?

Using rotisserie chicken for this Keto chicken fajita casserole is an excellent way to reduce cooking time. Remember to add in the skin for an extra roasted flavor. Also, this recipe is a great way to use any leftover chicken, whether grilled, poached, or roasted.

Is this recipe suitable for meal preps?

One of the great things about this recipe is that it can be prepared ahead of time. Follow all the steps to making this casserole but don't bake it. Cover it in plastic wrap and store it in the fridge for up to 2 days. When it's dinner time, bake it at 350 degrees for 10 minutes longer than what the recipe asks for.

  • Net Carbs

    4.2 g

  • Fiber

    2.2 g

  • Total Carbs

    6.4 g

  • Protein

    33.4 g

  • Fats

    34.6 g

462 cals

Cheesy Keto Chicken Fajita Casserole

#1 Low Carb & Keto Diet App Since 2010

Track macros, calories, and access top Keto recipes.

Download on the App Store
Get in on Google Play

Ingredients

  • Chicken Breast Boneless Skinless Raw

    Chicken Breast Boneless Skinless Raw

    2 breast

  • Olive oil

    Olive oil

    3 tbsp

  • Cream cheese spread

    Cream cheese spread

    0.5 cup

  • Paprika

    Paprika

    1.5 tsp

  • Cumin, ground

    Cumin, ground

    1 tsp

  • Oregano, dried

    Oregano, dried

    1 tsp

  • Salt

    Salt

    0.75 tsp

  • Black pepper

    Black pepper

    0.5 tsp

  • Onion, white, yellow or red, raw

    Onion, white, yellow or red, raw

    0.25 cup, chopped

  • green pepper

    green pepper

    0.25 cup, chopped

  • Red pepper

    Red pepper

    0.25 cup, chopped

  • Mexican blend cheese

    Mexican blend cheese

    1 cup, grated

  • Avocado

    Avocado

    0.5 each

Recipe Steps

steps 5

45 min

  • Step 1

    Preheat your oven to 350 degrees Fahrenheit. Place the chicken breasts on a cutting board and butterfly them (slice ¾ of the way horizontally)—season with salt and pepper on both sides. Add 1 Tbsp of olive oil to a non-stick skillet, and place over high heat. Cook the chicken breasts for 2-3 minutes on each side until golden, then transfer them to a plate.
    Step 1
  • Step 2

    Rest the chicken breasts for 5 minutes, chop them into 1-inch cubes, and add them to a bowl. Mix in the cream cheese, ¼ cup of shredded cheese, and ½ tsp each paprika, cumin, and oregano. Taste and adjust seasoning, set aside.
    Step 2
  • Step 3

    Place the skillet over medium-high heat, and drizzle 2 tbsp of olive oil. Add the onions and cook them for one minute. Add the red bell pepper, green bell pepper, 1 tsp paprika, ½ tsp cumin, ½ tsp oregano, ¼ tsp black pepper, and ¼ tsp salt. Cook for 2-3 minutes.
    Step 3
  • Step 4

    Transfer the chicken mixture to a medium-sized casserole dish, and distribute it evenly. Spread the cooked onions and peppers over the chicken. Finally, sprinkle ¾ cup of shredded cheese on top.
    Step 4
  • Step 5

    Bake for 25-30 minutes, or until the cheese is golden and bubbly. Let the casserole cool for 10 minutes. Garnish it with sliced avocado, coriander leaves, and sliced jalapenos. Serve immediately.
    Step 5

Comments 31

  • SuperAvocado354558

    SuperAvocado354558 16 days ago

    This for sure doesn’t make 4 servings. By itself, maybe 2, but you can squeeze 3 meals out of it with some other sides. A casserole dish is far too big. I fit the whole thing in a bread tin. Double the portions if you want a full casserole.

    • tjmart

      tjmart 2 months ago

      Tried this tonight and we loved it! I wrapped my portion in a low carb tortilla and topped it with salsa and sour cream. Yum!

      • leenancy

        leenancy 5 months ago

        I like the simplicity of this recipe. I only used 1T oil as I cubed the chicken while partially frozen. The pieces cooked up fast. Then cooked the remaining onions and peppers in the same oil. The cumin will be decreased in future meals. I did add 4 ounces of Ortega diced chiles Nummy

        • MarvellousRadish700809

          MarvellousRadish700809 5 months ago

          This was delicious and easy to make. I shrunk it down to 1 serving and cooked it in a tiny casserole dish. The only thing I might switch up next time is to try shredded chicken so it becomes part of the cream cheese mix rather than covered in it.

          • RousingAvocado213577

            RousingAvocado213577 5 months ago

            This is definitely my favorite from this app so far!! The family absolutely loved this!!!

            • UnbelievableArugula421031

              UnbelievableArugula421031 7 months ago

              Really enjoyed this!

              • StupendousCauliflower614527

                StupendousCauliflower614527 7 months ago

                This is sooo good. Will be making it again.

                • Ladyboss8

                  Ladyboss8 9 months ago

                  I love it and our whole family loves it

                  • Kazzywoo25

                    Kazzywoo25 10 months ago

                    Delicious, all the family enjoyed this dish however I doubled the recipe. I weighed out 195g for myself and there was just enough for 3 other hungry adults who added wraps to it. The original portions would defo not feed 4 people.

                    • GorgeousKetone733437

                      GorgeousKetone733437 10 months ago

                      Whole family loved it! Hubby wants me to make it tomorrow.

                      • FantasticAvocado760580

                        FantasticAvocado760580 a year ago

                        WOW! This was delicious. I added some sour cream, avocado, and sliced jalapeños and it was a fantastic meal that I’ll be making again, for sure!

                        • SpectacularArugula953920

                          SpectacularArugula953920 a year ago

                          This has become a weekly staple for me. I don’t like peppers so I substitute with crimini mushrooms and zucchini. I also make it dairy free using daiya cheese and dairy free cream cheese. It’s fantastic!

                          • AliciaReeves

                            AliciaReeves a year ago

                            Love this! Was a huge hit with my husband as well and he usually doesn't like Mexican dishes. Will be a staple in my keto journey thank you!

                            • MostlySonnie

                              MostlySonnie 2 years ago

                              Love this dish. I use the zero carb tortillas to eat it. I also add a little bit of chili flakes for some heat.

                              • GorgeousKetone963218

                                GorgeousKetone963218 2 years ago

                                Fantastic!

                                • Goldenfro1971

                                  Goldenfro1971 2 years ago

                                  Delicious! I added a little granulated garlic and I used canned chicken breast. I was feeling a little Iazy. Thanks for the recipe. Will make again.

                                  • AmazingArugula867642

                                    AmazingArugula867642 2 years ago

                                    This was amazing!

                                    • jdburgert@msn.com

                                      jdburgert@msn.com 2 years ago

                                      This was fantastic! I’ll be making it again! I made some guacamole to go with it. The none keto people had it wrapped in a tortilla. Yummy!

                                      • Renrac

                                        Renrac 2 years ago

                                        I bet keto people could eat this wrapped in a mission zero carb tomato basil tortilla. Hmm...sounds good! :)

                                    • WingedRayeth

                                      WingedRayeth 2 years ago

                                      Great recipe. I have done it with chicken, and I also experimented with using pork shoulder and it came out amazing both times.

                                      • GorgeousRadish749398

                                        GorgeousRadish749398 2 years ago

                                        Amazing taste and very filing!

                                        • April

                                          April 2 years ago

                                          This was delicious! Another score for a great family meal.

                                          • lerondasanford

                                            lerondasanford 2 years ago

                                            My son is not on Keto; however is eating healthier. He loves this. He asked me to safe the recipe. I did add 1/2 tablespoon of sour cream for him. I also loved this dish. Can't believe how I can eat like this and still lose weight.

                                            • Micgillacuddy85

                                              Micgillacuddy85 2 years ago

                                              Oh my!!! I can cook!!! Thank you sooo much...easy and tastes fantastic!!!!

                                              • Beckslp

                                                Beckslp 2 years ago

                                                So delicious!!! I added a little enchilada sauce!!

                                                • FantasticMacadamia963803

                                                  FantasticMacadamia963803 2 years ago

                                                  Mmmmmmmmmm….. so good absolutely love and will become a staple whether or not on keto

                                                  • SuperMacadamia345235

                                                    SuperMacadamia345235 2 years ago

                                                    This was quite good. Bold flavors, creamy and cheesy. I found the portion sizes to be fine.

                                                    • MirthfulAvocado728394

                                                      MirthfulAvocado728394 2 years ago

                                                      Im making this one today, i can't wait!

                                                      • SuperArugula127718

                                                        SuperArugula127718 2 years ago

                                                        Love this recipe. Definitely a keeper and will be in our weekly rotation!

                                                        • GorgeousKale153

                                                          GorgeousKale153 2 years ago

                                                          Any idea how long to put this in the oven for and at what temperature when it’s been frozen?

                                                          • Catlady18

                                                            Catlady18 2 years ago

                                                            This recipe is a weekly staple in our home! My husband (who isn’t strictly keto) has said this is his favorite keto recipe I’ve made so far. Definitely a smaller portion but very filling!