Sheet Pan Chicken Fajitas are an easy, one-pan meal that combines tender chicken, vibrant bell peppers, onions, and zesty fajita seasoning – all roasted together for a flavorful, no-fuss dinner. This dish is perfect for busy weeknights when you want a healthy and satisfying meal with minimal cleanup. The ingredients are simple, but the flavors are bold, with the chicken and vegetables infused with smoky spices and a touch of citrus.
To make Sheet Pan Chicken Fajitas, start by slicing chicken breasts or thighs into strips and seasoning them with a blend of chili powder, cumin, paprika, garlic powder, onion powder, salt, and a squeeze of lime juice. Bell peppers and onions are also sliced into strips and tossed with the same fajita seasoning to ensure every bite is bursting with flavor.
Everything is arranged on a sheet pan and roasted in the oven until the chicken is perfectly cooked and the vegetables are tender and caramelized. The result is a sheet pan full of smoky, savory chicken and crisp, sweet peppers and onions. The roasted vegetables are slightly charred around the edges, giving the dish extra depth and richness.
Once everything is cooked, serve the fajitas in soft flour tortillas or warm corn tortillas. Top them with your favorite toppings, such as sour cream, guacamole, salsa, shredded cheese, or cilantro, to make them even more delicious.
Sheet Pan Chicken Fajitas are not only easy to make, but they’re also highly customizable. You can swap the chicken for shrimp, beef, or a vegetarian option like tofu or beans. Add other vegetables like zucchini or corn for added variety. You can even adjust the level of spice by using more or less chili powder or adding jalapeños.
This dish is great for meal prepping, as the ingredients can be prepped ahead of time and roasted just before serving. It’s perfect for a casual dinner with family or friends or even a taco night. The best part? Cleanup is a breeze, with just one pan to wash!

Ingredients
- 1 pound chicken breast, sliced into strips
- 3 medium bell peppers, sliced (use a mix of colors)
- 1 large onion, sliced
- 2 tablespoons olive oil
- 2 tablespoons fajita seasoning
- 8 small flour tortillas for serving
- 1/2 cup sour cream optional, for serving
- 1/2 cup guacamole optional, for serving
Instructions
- Preheat your oven to 400°F (200°C).
- Place the sliced chicken, bell peppers, and onion on a large sheet pan.
- Drizzle with olive oil and sprinkle the fajita seasoning over the top.
- Toss everything together until the chicken and vegetables are well coated.
- Spread the mixture into an even layer on the sheet pan.
- Bake in the preheated oven for 20-25 minutes, or until the chicken is cooked through and the vegetables are tender.
- Serve the chicken and vegetables in warm tortillas with sour cream and guacamole, if desired.
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