Sheet Pan Chicken Fajitas
I have made fajitas every which way, and the sheet pan version is the one I like the best. Everything gets done at the same time and the cleanup is easy. If you usually cook fajitas in a skillet, this version gives you the same results with less hands on time.
Sheet pan chicken fajitas are as simple as sliced chicken, peppers, and onions, well seasoned and roasted at a higher heat, which makes them perfect for the sheet pan. The peppers and onions caramelize and the flavors meld nicely. While it’s in the oven, I warm my tortillas and set out whatever toppings we like.
Why This Method Works
★ Roasting at high heat cooks the chicken quickly and lets excess moisture cook off. When the pieces have space on the pan, the edges brown instead of turning soft. That small detail changes the texture.
★ The onions and peppers caramelize at a higher heat and are done at the same time as the chicken.
★ Letting the pan sit for a few minutes before serving helps the juices settle back into the chicken. It’s a simple step, but it keeps the filling from feeling dry in the tortillas.
Key Takeaways
- Use a hot oven, 425°F is ideal, and give the food space on the pan.
- Slice the chicken and vegetables close to the same thickness so everything finishes together.
- Test the chicken at the thickest part with an instant-read thermometer and cook until they are 165°F.
- Let the pan sit for a few minutes before serving
Ingredient Highlights
Chicken breasts: Cut the chicken breast into thin strips and slice against the grain. That small step makes a difference in tenderness.
Bell peppers: Green, red, and yellow peppers all work. They roast down and turn slightly sweet, which balances the seasoning. Keep the slices similar in size so they soften evenly.
Onion: Yellow or red both work well. Slice the onions into strips that match the size of the peppers so they cook at the same pace.
Chili powder and cumin: This is the backbone of the flavor. I’ve included my recipe for fajita seasoning in the recipe card. But you can buy a ready-made fajita seasoning if that is easier for you.
How to Make Sheet Pan Fajitas
- Preheat the oven to 425°F. Line a sheet pan with foil.
- Slice the chicken into thin strips. Slice the peppers and onion to about the same thickness. It does not need to be perfect, but try to keep it close.
- Toss the chicken and vegetables in a large bowl with olive oil and your seasonings. Stir well so the spices coat the chicken and settle onto the vegetables too.
- Spread everything onto a large rimmed sheet pan in one even layer. If it looks crowded, use a second pan.
- Roast for about 18 to 22 minutes, stirring once halfway through. The chicken is done when an instant-read thermometer inserted into the thickest part registers 165°F.
- Let the pan rest for a few minutes. Serve with warm tortillas and any toppings you like. Lime wedges are also nice to serve on the side.
Variations
- Use boneless skinless chicken thighs in place of the breasts. They stay very tender and bring a little more richness.
- Add sliced mushrooms or a poblano pepper if you want another layer of flavor. Keep the slices thin so everything finishes together.
- If you like a little heat, add a pinch of cayenne or serve with a spoonful of your favorite Pico de Gallo on the side.
Storing and Reheating
- Leftovers heat up well the next day, which makes this one easy to repeat.
- Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat in a skillet over medium heat until warmed through.
- You can freeze the cooked filling for up to 2 months. Thaw overnight in the refrigerator, then warm it in a skillet.
If you are interested in more easy sheet pan meals, I have rounded up 10 of my easy sheet pan dinners to keep you going.
FAQs
Can I prep this earlier in the day?
Yes. I often slice the chicken and vegetables a few hours ahead and keep them covered in the refrigerator. I wait to add the oil and seasoning until just before roasting so nothing turns watery.
Can I double the recipe?
You can, but use two sheet pans. Space matters more than anything here. So make sure you have enough room between your ingredients.
Do I need to marinate the chicken?
No. The seasoning and hot oven do the job. If you want to mix the spices with the chicken 30 minutes ahead, that’s fine, but not any longer.
Easy Chicken Fajitas Recipe With Authentic Mexican Flavor
Ingredients
Fajita Seasoning
- 1 teaspoon chili powder
- 1 teaspoon smoked paprika
- 1 teaspoon ground cumin
- 1 teaspoon granulated garlic
- 1 teaspoon kosher salt
- 1 teaspoon granulated sugar
Chicken and Vegetables
- 1-1/4 pounds boneless skinless chicken breasts, cut into 1/2-inch strips about 3 breasts
- 3 bell peppers combination of green, yellow, red or orange
- 1 medium onion
- 3 tablespoons vegetable or canola oil divided
- ¼ cup water
- 8 flour or corn tortillas 8-inches or larger in diameter
- Lime wedges for garnish
Instructions
- In a medium bowl, combine the chili powder, paprika, cumin, garlic, salt, and sugar; mixing well. Set aside 1 tablespoon of the seasoning mix.
- Add the chicken breast strips to the remaining seasoning mix in the bowl. Toss the chicken strips to coat with the seasoning.
- Meanwhile, core and seed the bell peppers. Slice the peppers lengthwise into 1/2 inch strips. Peel the onion and slice lengthwise. Slice again horizontally into 1/2 inch strips.
- In a large skillet over medium-high heat, add 2 tablespoons of the oil and heat until shimmering. Add the chicken strips and cook, turning often, 3 to 5 minutes or until the chicken is lightly browned and no longer pink in the middle. Transfer the chicken strips to a plate.
- Add the remaining oil to the skillet and heat until shimmering. Add the onions and cook, stirring, for 3 minutes. Add the bell peppers and cook, stirring occasionally, 7 to 9 minutes or until the mixture is softened and beginning to caramelize.
- Return the chicken to the skillet. Stir in the remaining seasoning mix and the water. Using a wooden spoon, cook, scraping up any browned bits from the pan, 3 minutes or until the meat is cooked through.
- Meanwhile warm the tortillas. (See Cook's Tips for warming tortillas.)
- Serve tortillas with the chicken fajita mixture and desired toppings.
