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Busy night, one pan, big flavor. These sheet pan chicken fajitas roast into juicy chicken with caramelized peppers and onions, and they’re ready before you’ve set the table.
The method is simple: toss, spread on a large pan, bake at high heat, then broil for a quick char.
Keep the seasoning easy with my house blend and see the stovetop version if you’re craving the sizzle: Fajita Seasoning and Chicken Fajitas.
What you’ll need
- Chicken breasts: Lean strips that cook fast and stay tender; boneless thighs work too for extra juiciness.
- Bell peppers: A mix of colors adds sweetness and looks great on the platter.
- Yellow onion: Roasts until soft with caramelized edges for classic fajita flavor.
- Fajita seasoning: Use my homemade fajita seasoning or a store‑bought packet.
- Olive oil: Helps the spices cling and encourages browning.
- Flour tortillas: Warm at the end so they’re soft and pliable.
- Lime and cilantro: Bright finish.
- For serving: Guacamole, pico de gallo and extra lime wedges.
See printable recipe card below for the full ingredients list and quantities.
How to make
Preheat the oven to 425°F. Lightly oil a large rimmed half‑sheet pan.
Pat the chicken dry. Slice the chicken against the grain into thin strips. Slice the peppers and onion into similar thickness so everything cooks evenly.
Add the chicken and vegetables to the pan. Drizzle with olive oil and sprinkle with fajita seasoning.
Toss directly on the pan until every piece is coated, then spread into a roomy single layer. No need to flip during baking; leaving it undisturbed helps with color on the edges.
Bake on the top rack for 20 to 25 minutes until the chicken is opaque and the vegetables are tender with caramelized edges. For a restaurant‑style finish, broil for 1 to 2 minutes at the end for light char (a common trick in top recipes).
Wrap tortillas in foil and warm them in the oven during the last few minutes. Finish the tray with a generous squeeze of lime and a handful of cilantro. Serve hot with guacamole and pico.
My tips
Don’t crowd the pan: Space helps everything roast and caramelize; use two pans if needed so nothing steams .
Cut evenly: Similar‑size strips mean even cooking and tender bites.
Finish under the broiler: One to two minutes gives you lightly charred edges for extra flavor .
Warm the tortillas: A few minutes in the oven softens them and keeps them from tearing.
What to serve with sheet pan chicken fajitas
These fajitas are satisfying on their own, but a simple side or drink rounds out the meal. Try them with Mexican rice, refried beans, or a cool glass of Mexican horchata.
Set out toppings so everyone can build their own: guacamole recipe, pico de gallo, lime wedges, cilantro, and shredded cheese.
Storage
Fridge: Up to 4 days in an airtight container; keep tortillas separate.
Freezer: Up to 3 months. Best results: freeze raw—toss sliced chicken, peppers, onion, oil, and seasoning in a bag, press flat, and freeze; thaw overnight and bake. Cooked leftovers can be frozen, but peppers soften more after thawing (still tasty for bowls and quesadillas).
Reheat: Skillet over medium heat until hot; add a splash of water if needed.
More fajita recipes
If you try this recipe, I’d truly appreciate your feedback – leave a comment and rating below with how it went and any tweaks you loved.
Easy Sheet Pan Chicken Fajitas
Equipment
Ingredients
- 3 chicken breasts boneless skinless, cut into thin strips
- 3 bell peppers mixed colors, cored and sliced
- 1 yellow onion large, thinly sliced
- 2 tablespoons olive oil
- 2 tablespoons fajita seasoning see homemade blend below or store‑bought
- 6-8 flour tortillas small, warmed
- 1 lime cut into wedges (plus more for serving)
- ¼ cup cilantro chopped (plus more for serving)
- 1 cup Guacamole for serving
- 1 cup pico de gallo for serving
Homemade Fajita Seasoning (sub for store‑bought)
- 1 teaspoon chili powder
- ½ teaspoon smoked paprika
- ½ teaspoon ground cumin
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
- ½ teaspoon fine sea salt
- ¼ teaspoon black pepper
- ¼ teaspoon dried oregano optional
- ¼ teaspoon Cayenne pepper optional
- ½ teaspoon sugar optional
Instructions
- Preheat the oven to 425°F and lightly oil a large rimmed sheet pan. Pat the chicken dry and slice against the grain. Slice the peppers and onion into similar thickness for even cooking.
- Add the chicken, peppers, and onion to the pan. Drizzle with olive oil and sprinkle with the fajita seasoning. Toss to coat, then spread into a roomy single layer.
- Bake on the top rack for 20 to 25 minutes until the chicken is opaque and the vegetables are tender with caramelized edges. For more char, broil for 1 to 2 minutes at the end.
- Wrap the tortillas in foil and warm them in the oven during the last few minutes. Squeeze fresh lime over the fajitas, sprinkle with cilantro, and serve hot with guacamole and pico de gallo.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Looks delicious!
Thanks!