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    Home » Keto Dinner Ideas » Easy Keto Chicken Fajitas

    Published: Apr 24, 2021 · Modified: Aug 17, 2021 by Carolyn

    Easy Keto Chicken Fajitas

    This post may contain Amazon or other affiliate links. As an Amazon Associate I earn from qualifying purchases.

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    These sheet pan keto chicken fajitas come together in 35 minutes, start to finish. It’s a one pan meal bursting with bold flavor. And it’s a meal the whole family will love.

    Titled image of sheet pan keto chicken fajitas, with some on a black plate in front of the sheet pan.

    I think you already know by now that I am very taken with sheet pan meals. They’ve become a standard in my house, because they are fast, easy, delicious, and infinitely versatile. And when you’ve got three hungry teenagers around, easy recipes like this are of the utmost importance.

    This recipe for sheet pan chicken fajitas has actually been on the blog since 2016. It may have been my first foray into sheet pan cooking, now that I think about it. But I decided to give it a bit of an update, with a few tweaks and some new photos.

    And when I made it again, I remembered just how good it is. Tender slices of chicken, peppers, and onions with tons of bold fajita flavor. And so ridiculously easy to pull together. It’s the ideal weeknight family dinner.

    If you love sheet pan meals, be sure to also check out my Easy Keto Jambalaya and Keto Sheet Pan Chicken and Veggies.

    Top down image of keto sheet pan chicken fajitas, with all the ingredients lined up on the sheet pan.

    Keto Chicken Fajita Ingredients

    The best part about a sheet pan recipe like this? 6 simple ingredients that are readily available just about anywhere.

    • boneless, skinless chicken (I recommend using thighs for juicer chicken)
    • peppers (one whole green pepper, and half each red and yellow peppers)
    • onion (just use half to keep the carb count down)
    • oil
    • taco seasoning (be sure it has no additives like sugar or starch – I like the one from Primal Palate)
    • additional salt and pepper (season to taste after the fajitas are done)

    Top down image of sheet pan chicken fajitas with cilantro and avocado beside the pan.

    Oven Baked Keto Chicken Fajitas

    Sheet pan cooking is so easy, you’ll wonder why you ever cook any other way. And you can mix all the ingredients right on the pan, so you don’t dirty any other bowls or dishes.

    1. Slice the chicken thighs thinly for faster cooking. Keep them no more than ½ inch thick.
    2. Slice the peppers thinly as well.
    3. Lay all the ingredients out on a rimmed baking sheet and drizzle with oil.
    4. Sprinkle with the taco seasoning and toss right on the pan.
    5. Spread it all out evenly again and bake!

    How easy is that?

    A black plate with keto chicken fajitas, avocado, and cauliflower wraps.

    How to serve keto chicken fajitas

    This is not quite a full meal unto itself, so you may find yourself wondering how to serve it. You’ve got some great options for keto sides.

    I like to make fajita bowls with it and serve it over some of my Cilantro Lime Cauliflower Rice. You could also serve it over lettuce for a low carb fajita salad.

    But it’s also great paired with some keto cauliflower wraps or bread thins, like the ones from Outer Aisle. I also recently tried these almond flour tortillas from The Keto Tortilla Company, and they’re a great option as well.

    Don’t forget the toppings! These keto chicken fajitas are great with some avocado or guacamole, a squeeze of lime, and even some shredded Mexican cheese. Sour cream is delicious too.

    How to store the leftovers

    Don’t need 6 servings of keto fajitas? You can easily cut this down to size. But the leftovers are delicious and easy to store. Just transfer them to a covered container, and they will last in the fridge for 4 days.

    Simply reheat gently in the oven or microwave.

    Keto chicken fajitas on a sheet pan with avocado and cilantro in the background

    More Mexican Inspired Keto Recipes

    • Keto Chicken Enchilada Skillet
    • Easy Keto Taco Pie
    • Keto Tamale Pie
    • Slow Roasted Keto Carnitas
    • Chili Verde Chicken Bake
    Keto chicken fajitas on a sheet pan with avocado and cilantro in the background

    Keto Chicken Fajitas

    These sheet pan keto chicken fajitas come together in 35 minutes, start to finish. It's a one pan meal bursting with bold flavor. And it's a meal the whole family will love.
    5 from 9 votes
    Print Pin Rate
    Course: Main Course
    Cuisine: Mexican
    Keyword: keto chicken fajitas, sheet pan chicken fajitas
    Prep Time: 10 minutes
    Cook Time: 25 minutes
    Total Time: 35 minutes
    Servings: 6 servings
    Calories: 227kcal

    Ingredients

    • 2 lbs boneless skinless chicken thighs
    • 1 medium green pepper
    • ½ medium red pepper
    • ½ medium yellow pepper
    • ½ medium onion
    • ¼ cup avocado or olive oil
    • 3 tablespoon taco seasoning
    • Salt and pepper

    Instructions

    • Preheat the oven to 400F.
    • Slice the chicken thighs into thin strips. Slice the peppers and onions thinly. Spread out the chicken and veggies on a large rimmed baking sheet.
    • Drizzle with the oil and sprinkle with the taco seasoning, then toss well to combine and spread out again evenly on the baking sheet.
    • Bake 20 to 25 minutes, until the chicken is cooked through. Season with additional salt and pepper to taste.
    • Serve with cauliflower rice or keto friendly wraps.
    Nutrition Facts
    Keto Chicken Fajitas
    Amount Per Serving (1 serving = ⅙th of recipe)
    Calories 227 Calories from Fat 123
    % Daily Value*
    Fat 13.7g21%
    Carbohydrates 4.1g1%
    Fiber 1.2g5%
    Protein 29.4g59%
    * Percent Daily Values are based on a 2000 calorie diet.

     

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    Nutritional Disclaimer

    Please note that I am not a medical or nutritional professional. I am simply recounting and sharing my own experiences on this blog. Nothing I express here should be taken as medical advice and you should consult with your doctor before starting any diet or exercise program. I provide nutritional information for my recipes simply as a courtesy to my readers. It is calculated using MacGourmet software and I remove erythritol from the final carb count and net carb count, as it does not affect my own blood glucose levels. I do my best to be as accurate as possible but you should independently calculate nutritional information on your own before relying on them. I expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website.

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      Recipe Rating




    1. Val says

      January 05, 2023 at 8:21 pm

      5 stars
      Amazing!
      Thank you again Carolyn, whole family loved these even the grandkids!

      Reply
    2. Gila Unguru says

      April 11, 2022 at 12:27 pm

      Hi Carolyn
      I have loved your recipes for years!!! I can always count on you to have just what I’m searching for and every recipe is a winner .

      I have some thinly slices beef for stir fry – do you think i could make this recipe using the beef – I’m thinking of maybe starting the peppers and onions for 10-15 min then adding the beef for the last ten minutes. Any thoughts?

      Reply
      • Carolyn says

        April 11, 2022 at 3:42 pm

        Yes… and i think you don’t even need to cook the veggies that long first. They soften quite easily on the pan.

        Reply
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