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.
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.
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)
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.
- Slice the chicken thighs thinly for faster cooking. Keep them no more than 1/2 inch thick.
- Slice the peppers thinly as well.
- Lay all the ingredients out on a rimmed baking sheet and drizzle with oil.
- Sprinkle with the taco seasoning and toss right on the pan.
- Spread it all out evenly again and bake!
How easy is that?
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.
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.
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
Ingredients
- 2 lbs boneless skinless chicken thighs
- 1 medium green pepper
- 1/2 medium red pepper
- 1/2 medium yellow pepper
- 1/2 medium onion
- 1/4 cup avocado or olive oil
- 3 tbsp 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
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How long for chicken breasts?
Probably about the same, depending on how thinly you slice them.
My non-keto boyfriend loved this when I made it a few weeks ago and requested that I make it again tonight…it is so easy and delicious! Thank you for the recipe!!
I have made alot of your recipes and served them to my family there a hit. Thank you for bringing a verity to my diet
These chicken fajitas were delicious. They are perfect for my low carb life style. Thanks for the great recipe.
This chicken fajita recipe was full of flavor and yummy texture. LOVED that it was made on one pan for easy clean up! Thanks for another winning recipe.
These are absolutely delicious! I’ve been looking for new recipes to add to our rotation since starting low carb and these will be on the plan every week!
This sounds delicious and easy!
I just want to mention that I’ve found a great new wrap for things like fajitas. It sounds silly, it’s so easy. A steamed cabbage leaf! Whole leaves, steamed for thirty seconds, work magically. The leaf clings to itself and does a perfect job of holding fillings without breaking…and it has very little taste. I’ve used it for Asian stir-fry and tuna salad in addition to fajitas.
Sounds perfect! There are lots of good ways to serving recipes like these.
I make this all the time but use my ninja foodie airfryer. Done in 20 minutes!!! Perfect to make after work
This one is done in about the same time! But whatever works for you. 😉
I just made this for dinner tonight and I have to say I am OVER THE MOON! This was so quick, easy, and FLAVORFUL. My family loved it.
So glad to hear it!
I have made this dish numerous times and love it every time. So easy and so good!
This is 100% my kind of meal! Thanks for sharing my fajita seasoning — it would be SO perfect with this! Pinned!
These were crazy easy and delicious! Thank you so much for sharing it.
Soooooooo gooooood! Big hit with the whole family. Simple, easy to prepare, colorful and delicious. And the cauli rice is awesome too! I have been (foolishly, it seems!) microwaving my cauli rice, which tends to make it soggy — but sauteeing it as in your recipe keeps the texture perfectly al dente. And the lime is just the perfect complement to this meal! Both recipes are already filed for easy access. Yum!
The link seems to be broken to see the recipe! I would love to see the recipe!
Their site is back up!
We just scarfed it down…I love that we can now make chicken fajitas at home! We served it on low-carb tortillas. It was every bit as good as ones we’ve had at restaurants. Thanks so much! You make low-carbing easy and delicious.
Pinned! This is totally going on our menu for this week 🙂
Happy New Year!
Where is the recipe? All I see is an article no recipe
There is a link right after the last photo.
Happy New Year to you, Carolyn! Thanks for all you do for us low-carbers! :0)
Carb count is not listed.
Ugh, you’re right. They messed up and they also don’t have the servings. It serves 6.
Food energy: 196kcal
Total fat: 13.37g
Calories from fat: 120
Cholesterol: 106mg
Carbohydrate: 3.66g
Total dietary fiber: 1.13g
Protein: 22.75g
Do you happen to know the carb count for these?
Yes, if you click through the link it should all be there!
Sorry about that, I just realized now that they messed up and left it all out. It should also say that it serves 6.
Food energy: 196kcal
Total fat: 13.37g
Calories from fat: 120
Cholesterol: 106mg
Carbohydrate: 3.66g
Total dietary fiber: 1.13g
Protein: 22.75g