One-Pan Baked Chicken Fajitas

Weeknights just got easier!

These one-pan baked chicken fajitas are juicy, smoky, and full of flavor-with barely any dishes to wash.
You'll simply toss sliced chicken, colorful bell peppers, and onions with fajita seasoning and olive oil, then bake everything on a single sheet pan.
Dinner's ready in just 25 minutes and making it the ultimate quick meal for busy families.

Why You'll Love This Recipe

• ✅ Quick & easy: On the table in 25 minutes.

• ✅ Minimal cleanup: Everything cooks on one sheet pan.

• ✅ Healthy & flavorful: Lean protein, fresh veggies, and bold spices.

• ✅ Family-friendly: Customizable with toppings for everyone.

• ✅ Perfect for meal prep: Reheats beautifully for next-day lunches.

What are chicken fajitas?

Chicken fajitas are a popular Tex-Mex dish made with grilled or sautéed chicken, bell peppers, onions, and a blend of flavorful spices. The ingredients are typically cooked together and served on warm tortillas, accompanied by various toppings such as shredded cheese, sour cream, salsa, guacamole, and lettuce. Chicken fajitas are versatile and customizable, making them a favorite for many people. It is a delicious and satisfying meal that can be enjoyed for lunch or dinner.

Step-By-Step Instructions

1. Preheat oven: 400°F (200°C). Line or lightly oil a large sheet pan.

2. Slice the chicken breasts into thin strips - about ½-inch wide and cut against the grain for tender bites that cook evenly and quickly.

3. Add sliced chicken, bell peppers, and onion to the pan.

4. Drizzle with olive oil and sprinkle fajita seasoning. Toss until evenly coated.

5. Spread mixture into a single layer. Bake for 20-25 minutes, stirring halfway, until chicken reaches 165°F and veggies are tender.

6. Sprinkle the warm fajita filling with the shredded cheese so it melts slightly. Finish with a squeeze of lime. Serve hot with warm tortillas and toppings.

Variations & Substitutions

• Swap chicken for shrimp or sliced steak-adjust cooking time.

• Make it low-carb by serving over cauliflower rice or lettuce wraps.

• Add mushrooms or zucchini for extra veggies.

• Use smoked paprika or chipotle powder for a spicier kick.

Pro Tips for the Best Baked Fajitas

• Marinate chicken in seasoning and lime juice for 30 minutes for even more flavor.

• Cut veggies and chicken in similar thickness for even cooking.

• Broil for the last 2 minutes for slightly charred edges.

• Warm tortillas in a dry skillet or foil packet in the oven while fajitas bake.

What to Serve with Chicken Fajitas

• Cilantro lime rice or Spanish rice

• Black beans or refried beans

• Fresh guacamole & pico de gallo

• Simple side salad or Mexican street corn

• Tortillas

Storage & Reheating

• Keep leftovers in an airtight container in the fridge for up to 3 days.

• Warm in a skillet over medium heat or in the oven at 350°F until hot.

• Cooked fajitas can be frozen (without toppings) for up to 2 months.

FAQs

Can I prep this ahead of time?
Yes! Slice chicken and veggies, toss with seasoning and oil, then cover and refrigerate up to 24 hours before baking.

Can I use chicken thighs instead of breasts?
Absolutely! Boneless thighs stay extra juicy; just bake for 25-28 minutes.

How do I know when chicken is done?
Use a meat thermometer - 165°F internal temperature means it's safe and juicy.