Sheet Pan Fajitas
Published October 30, 2021 • Updated February 3, 2026
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This is the only way you should be making sheet pan fajitas. This 30 minute meal involves simple ingredients and delivers char-broiled flavor, giving these chicken fajitas an authentic restaurant flair right at home.
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Ingredients
1 tablespoon chili powder -
1 teaspoon garlic powder
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1 teaspoon onion powder
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1 teaspoon salt
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1 teaspoon black pepper
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1 red bell pepper
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1 green bell pepper
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1 yellow onion
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1/4 cup avocado oil, divided
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2 lb skinless, boneless chicken thighs
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1 cup shredded Colby Jack cheese
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juice from 1/2 lime, optional
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chopped cilantro, optional
Step by Step Instructions
Step by Step Instructions
Mix fajita seasoning
In a small bowl, whisk together chili powder, garlic powder, onion powder, salt and pepper. Set aside.
Slice peppers & onions
Slice the red bell pepper, green bell pepper and onion into long thin strips. Remove seeds from the peppers.
Char-broil peppers & onions
Place sliced pepper and onions on a foil lined rimmed baking tray. Drizzle with 2 tablespoons avocado oil and sprinkle half of the fajita seasoning evenly on top of the bell peppers and sliced onion. Place sheet pan on the top rack and broil on high for 10 minutes or until the onions and peppers start to char. Remove from the oven.
Season chicken
Meanwhile, cut chicken thighs into bite sized strips. Add to a medium bowl and add remaining avocado oil and fajita seasoning. Mix until chicken is evenly coated.
Cook chicken
Evenly spread chicken on top of peppers and onions on the baking tray. Return to oven and broil on high for another 5-10 minutes until chicken is cooked through.
Nutrition disclaimer
The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.
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Get My Macros (Free) →Frequently Asked Questions
Can I use other types of meat instead of chicken thighs?
Absolutely! You can substitute chicken breasts, shrimp, or even tofu for a vegetarian option. Just adjust the cooking time accordingly, as different proteins require different cooking times.
What if I don't have avocado oil?
No problem! You can use olive oil or any other cooking oil you have on hand. Just keep in mind that the flavor will vary slightly, but it will still be delicious.
How can I store leftovers from the sheet pan fajitas?
Let the fajitas cool down to room temperature, then store them in an airtight container in the fridge for up to 3 days. You can also freeze them for up to 2 months; just make sure to separate them into meal-sized portions.
Can I make this recipe vegetarian?
Yes! Simply replace the chicken with your favorite vegetables, such as mushrooms, zucchini, or more bell peppers. You can also add black beans for extra protein!
Is there a way to make this dish spicier?
Definitely! You can add diced jalapeños or a pinch of cayenne pepper to the seasoning mix. Adjust the amount to your heat preference to keep it enjoyable!
So I just had to leave a review on this recipe. Oh my goodness! YUM!! This sheet pan fajita recipe was so easy and so delicious! I will definitely be making this on a regular basis! It was a BIG hit with my non keto family members as well! Have you ever made it with shrimp? I might try that next. Thanks for all your delicious recipes!
We just found and cooked this recipe and it was absolutely delicious. We didn't use lime juice and cilantro, and mozz cheddar mix for the cheese because that's what we had on hand.
This is one of my favorites! I even tried it with skirt steak instead of chicken and it was delicious. This is now in my regular dinner rotation! I love how quick and easy it is to make.
Can You Just Bake This Chicken Fajitias My Broiler Doesn't Work. Going To Make This W All The Veggies???
Yes, bake at 400 degrees for about 15 minutes or until the chicken is cooked through
This is a WINNER -- even my hard-to-please son loved it! The broiling makes all the difference, and it's so quick and easy. It will definitely become a regular on our meal rotation. Thanks for a great recipe!
So easy and so good! This one caught my eye on Instagram and was a winner for sure. Thanks for such great posts / recipe ideas!!
:) it is my pleasure!
This is an amazing recipe . My family loves it. I make it once a week
This keto sheet pan fajitas recipe is a total winner and I will be making this for my family and friends. It's so EASY to make and the flavor is amazing!