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Sheet Pan Chicken Fajitas

Sheet pan chicken fajitas with char-edged chicken strips and vibrantly roasted bell pepper and onion. The fajita seasoning caramelizes on everything in a hot oven for an easy Tex-Mex weeknight Mexican dinner.
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 4 servings
Course: Main Dish
Cuisine: Tex-Mex
Calories: 620
Ingredients Equipment Method Notes

Ingredients
  

Chicken and vegetables
  • 1.5 lb chicken breast Sliced into strips.
  • 3 bell peppers (red, yellow, green) Sliced.
  • 1 onion Sliced.
  • 3 tbsp olive oil
  • 2 tbsp fajita or taco seasoning
  • 1 tsp garlic powder
  • 1 tsp smoked paprika
  • 0.5 tsp salt To taste.
  • 0.25 tsp black pepper To taste.
Serving
  • warm tortillas
  • sour cream
  • guacamole
  • salsa
  • lime wedges For garnish.
  • cilantro For garnish.

Equipment

  • 1 sheet pan

Method
 

Prep and season
  1. Preheat your oven to 425°F and line a large sheet pan with foil for easy cleanup.
  2. In a large bowl, combine the chicken strips, bell peppers, and onion, then toss briefly to mix the ingredients.
  3. Drizzle with olive oil and sprinkle with fajita seasoning, garlic powder, smoked paprika, salt, and black pepper; toss well until everything is evenly coated and glossy.
Roast the fajitas
  1. Spread the mixture on the sheet pan in a single layer without overlapping so the edges can char, with peppers and chicken visible across the surface.
  2. Roast at 425°F for 22–25 minutes, stirring once halfway through, until the chicken is cooked through and the edges are slightly charred and caramelized.
Serve
  1. Serve immediately in warm tortillas topped with sour cream, guacamole, salsa, lime wedges, and cilantro.

Notes

For the best char, avoid overlapping the chicken and vegetables on the sheet pan so steam can’t build up. Store leftovers in the refrigerator up to 3 days; reheat on a sheet pan in a 425°F oven until hot. Freezing is not recommended for the vegetables, but you can freeze chicken only. For a dairy-free option, skip sour cream or use a dairy-free sour cream-style topping.