Sheet Pan Chicken Fajitas (Easy 35-Minute)

Sheet pan chicken fajitas with charred peppers, red onion, lime wedges, and warm tortillas

Fajita (noun): A meal consisting of seasoned strips of meat and vegetables, commonly served in tortillas.

These sheet pan chicken fajitas use one baking sheet and a short list of standard ingredients. Chicken breast strips, bell peppers, and red onion are coated with olive oil and a dry blend of chili powder, cumin, paprika, and garlic powder. The ingredients roast at high heat until the chicken is cooked and the vegetables develop browned, lightly charred edges.

The method is suitable for a weeknight meal. Preparation takes approximately 15 minutes. Cooking takes approximately 20 minutes. The finished fajitas can be served with flour or corn tortillas and toppings such as salsa, avocado, cilantro, sour cream, or shredded cheese.

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PREP

Slice the chicken and vegetables into similarly sized strips. This supports even cooking and helps the vegetables finish at approximately the same time as the chicken.

Use a large rimmed sheet pan. The ingredients should fit in a single layer with space between pieces. Crowding traps steam and reduces browning. If necessary, divide the ingredients between two pans.

Sliced chicken, bell peppers, red onion, lime, and fajita seasonings prepared on a kitchen counter

Recipe

Servings: 4
Prep time: 15 minutes
Cook time: 20 minutes
Total time: 35 minutes
Course: Main course
Cuisine: Tex-Mex-inspired

Ingredients

  • 1½ pounds boneless, skinless chicken breasts, cut into thin strips
  • 3 bell peppers, preferably a mix of red, yellow, orange, or green, thinly sliced
  • 1 large red onion, thinly sliced
  • 2 tablespoons olive oil
  • 2 teaspoons chili powder
  • 1 teaspoon ground cumin
  • 1 teaspoon paprika
  • 1 teaspoon garlic powder
  • 1 teaspoon kosher salt
  • ½ teaspoon ground black pepper
  • Juice of 1 lime
  • 8 flour or corn tortillas, warmed

Optional toppings

  • Chopped fresh cilantro
  • Salsa or pico de gallo
  • Sliced avocado or guacamole
  • Sour cream or plain Greek yogurt
  • Shredded Monterey Jack or cheddar cheese
  • Pickled jalapeños
  • Extra lime wedges

Equipment

  • Large rimmed sheet pan
  • Large mixing bowl
  • Small bowl
  • Tongs or a large spoon
  • Instant-read thermometer, if available

METHOD

  1. Heat the oven. Preheat the oven to 425°F (220°C). Line a large rimmed sheet pan with parchment paper or foil if preferred. For additional browning, place the empty sheet pan in the oven while it heats.

  2. Prepare the seasoning. In a small bowl, combine the chili powder, cumin, paprika, garlic powder, salt, and black pepper.

  3. Prepare the chicken and vegetables. Place the chicken strips, bell peppers, and red onion in a large mixing bowl. Add the olive oil and seasoning mixture. Toss until the chicken and vegetables are evenly coated.

  4. Arrange the ingredients. Carefully remove the hot sheet pan if preheating it. Spread the chicken and vegetables across the pan in one layer. Keep the pieces separated as much as practical. Do not stack the ingredients.

  5. Roast. Place the pan in the oven and roast for 10 minutes. Stir or turn the ingredients with tongs, then return the pan to the oven.

  6. Finish cooking. Roast for another 8 to 10 minutes, or until the chicken reaches an internal temperature of 165°F (74°C) at the thickest point. The peppers and onion should be tender with browned edges.

  7. Add optional char. For darker edges, switch the oven to broil for the final 1 to 2 minutes. Keep the pan under observation because the seasoning and vegetables can burn quickly.

  8. Finish with lime. Remove the pan from the oven and squeeze the lime juice over the chicken and vegetables. Toss briefly to distribute the juice.

  9. Serve. Warm the tortillas in a dry skillet, microwave, or wrapped in foil in the oven. Serve the chicken and vegetables in the tortillas with the toppings of your choice.

Sheet pan chicken fajitas roasting with browned chicken, peppers, and red onion

TIPS

Cut the chicken evenly. Thin strips approximately ¼ inch thick cook quickly. Very thick pieces may require additional cooking time, while very thin pieces can dry out.

Use a large pan. A standard half-sheet pan provides more room than a small baking tray. The goal is to roast rather than steam the ingredients.

Do not rinse the chicken. Rinsing raw poultry can spread bacteria around the sink and surrounding surfaces. Pat the chicken dry with paper towels if it contains excess moisture, then discard the towels and wash your hands.

Check the temperature. Color is not a reliable indicator of doneness. The chicken should reach 165°F (74°C), measured with an instant-read thermometer.

Warm the tortillas before serving. Warm tortillas are more flexible and less likely to split when filled.

Prepare in advance. The chicken, vegetables, oil, and seasoning can be combined several hours in advance and refrigerated in a covered container. Keep the mixture chilled until ready to cook. For food safety, do not leave raw chicken at room temperature.

Store leftovers correctly. Refrigerate leftovers in a sealed container within two hours of cooking. Use within three to four days. Reheat until hot throughout.

VARIATIONS

Chicken thighs: Replace the chicken breast with boneless, skinless chicken thighs. Cut them into thin strips and confirm that the thickest pieces reach 165°F.

Milder fajitas: Use a mild chili powder and omit hot toppings. Sweet bell peppers provide flavor without additional heat.

Spicier fajitas: Add ¼ teaspoon cayenne pepper, sliced jalapeño, or crushed red pepper flakes to the seasoning mixture.

More vegetables: Add sliced poblano peppers, mushrooms, or zucchini. Cut all additions into thin strips so they cook within the same time frame.

Lower-carbohydrate serving: Serve the chicken and vegetables over cauliflower rice, a green salad, or lettuce cups instead of tortillas.

Rice bowl format: Serve the roasted mixture over cooked rice with black beans, corn, avocado, and lime.

Dairy-free serving: Omit sour cream and cheese. Use guacamole, salsa, cilantro, and lime as toppings.

For additional sheet-pan cooking guidance, see these relevant recipe references from Budget Bytes, Food Network, and Simply Recipes.

FAQ

Can I use frozen chicken for sheet pan chicken fajitas?

No. Use fully thawed chicken for this method. Frozen chicken releases excess moisture and may cook unevenly. Thaw the chicken in the refrigerator before slicing and seasoning.

Can I make sheet pan chicken fajitas without tortillas?

Yes. Serve the chicken and vegetables over rice, quinoa, cauliflower rice, or salad greens. The lime-seasoned mixture also works as a filling for bowls.

Why are my chicken fajitas watery?

Excess moisture usually results from overcrowding, wet vegetables, or chicken that was not patted dry. Use a large sheet pan, dry the ingredients before seasoning, and keep everything in a single layer.

How do I prevent the chicken from drying out?

Cut the chicken into evenly sized strips and begin checking it near the 18-minute mark. Remove it as soon as the thickest pieces reach 165°F. Overcooking is the primary cause of dry chicken breast.

Can I prepare these fajitas on two sheet pans?

Yes. Dividing the ingredients between two pans is preferable to crowding one pan. Place both pans in the oven and rotate their positions halfway through cooking.

Are sheet pan chicken fajitas gluten-free?

The chicken and vegetables are gluten-free when the spices and other ingredients are certified gluten-free. Use certified gluten-free corn tortillas or serve the fajita filling without tortillas. Check packaged toppings and seasonings for cross-contact information.