If you’re looking for an easy dinner that’s packed with flavor, these Sheet Pan Chicken Fajitas are guaranteed to become a weeknight favorite. Juicy chicken, colorful bell peppers, and sweet onions are tossed in a bold homemade fajita seasoning, then roasted until perfectly tender with delicious caramelized edges.
One of my favorite things about this recipe is how simple it is. Everything cooks together on one pan, making cleanup a breeze while still delivering restaurant-quality flavor. In fact, I honestly think these are just as good—if not better—than the fajitas from many Mexican restaurants!
Whether you’re feeding your family or entertaining friends, this recipe is always a crowd-pleaser. It also doubles easily, making it perfect for larger gatherings or meal prep.
Why You’ll Love This Recipe
- One pan means easy cleanup.
- Ready in about 30 minutes.
- Better than takeout.
- Loaded with fresh vegetables.
- Great for meal prep.
- Easy to double for a crowd.
Before You Get Started
For the best caramelization, spread the chicken and vegetables into a single layer on your baking sheet. Overcrowding the pan can cause everything to steam instead of roast.
Sheet Pan Chicken Fajitas (Easy 30-Minute Dinner)
Ingredients
- 2 large chicken breasts, sliced into thin strips
- 3 bell peppers, sliced (any color)
- 1 large yellow onion, sliced
- 2 tbsp olive oil
Fajita Seasoning
- 2 tsp chili powder
- 1/2 tbsp cumin
- 2 tsp garlic powder
- 1 tsp onion powder
- 1 tsp paprika
- 1/2 tsp black pepper
- 2 tsp salt
Optional Topping
- chopped cilantro
Instructions
- Preheat your oven to 400°F.
- Add the sliced chicken, bell peppers, onion, and olive oil to a large mixing bowl.
- Sprinkle in all of the seasonings and toss until everything is evenly coated.
- Spread the fajita mixture onto a large baking sheet in a single, even layer.
- Bake for 10 minutes.
- Open the oven door and, using a spatula, carefully stir the chicken and vegetables right on the baking sheet.
- Close the oven and continue baking for another 5 minutes.
- Then switch the oven to High Broil and broil for 2–3 minutes, or until the chicken is cooked through and the peppers and onions have lightly charred around the edges.
- Serve immediately over mexican rice or in warm flour or corn tortillas with your favorite toppings.
Our Favorite Toppings
- Fresh cilantro
- Sour cream
- Guacamole
- Queso
- Shredded cheese
- Pico de gallo
- Salsa
- Fresh lime wedges
- Sliced avocado
Tips for the Best Chicken Fajitas
- Slice the chicken into even strips so it cooks evenly.
- Don’t overcrowd the pan.
- Broiling at the end gives the chicken and vegetables that classic sizzling fajita flavor.
- Warm your tortillas before serving.
- Fresh lime juice squeezed over the top brightens all the flavors.
Frequently Asked Questions
Can I make these ahead of time?
Yes! Slice the chicken and vegetables ahead of time and store them separately in the refrigerator. Toss everything with the oil and seasoning just before baking.
Can I double this recipe?
Absolutely! This recipe doubles easily. Just use two sheet pans so everything has enough room to roast instead of steam.
Can I use different vegetables?
Definitely! Mushrooms, poblano peppers, zucchini, or even sliced jalapeños are all delicious additions.
Final Thoughts
These Sheet Pan Chicken Fajitas are proof that an easy dinner doesn’t have to sacrifice flavor. The homemade seasoning creates juicy, flavorful chicken and perfectly roasted peppers and onions that taste just like your favorite restaurant—maybe even better!
Serve them with warm tortillas and your favorite toppings for a meal that’s simple enough for busy weeknights but delicious enough to share with family and friends.