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Sheet pan chicken fajitas with bell peppers and red onions roasted on baking tray

Sheet Pan Chicken Fajitas (Quick Weeknight Dinner)

Avatar photoMarla Jennings
Colorful sheet pan chicken fajitas with roasted bell peppers and onions. A bold, quick weeknight dinner ready in about 30 minutes with minimal cleanup and big Tex-Mex flavor.
Prep Time 15 minutes
Cook Time 22 minutes
Total Time 37 minutes
Course Dinner
Cuisine Mexican-Inspired
Servings 4 servings
Calories 390 kcal

Equipment

  • Large Sheet Pan
  • Parchment Paper
  • Large mixing bowl
  • Tongs
  • Sharp knife
  • Cutting board
  • Instant-read thermometer

Ingredients
  

For the Chicken

  • 1 1/2 lb boneless, skinless chicken breasts sliced into 1/2-inch strips
  • 2 tbsp olive oil
  • 1 tsp chili powder
  • 1 tsp smoked paprika
  • 1 tsp ground cumin
  • 1/2 tsp garlic powder
  • 1/2 tsp onion powder
  • 1/2 tsp dried oregano
  • 3/4 tsp salt
  • 1/2 tsp black pepper
  • 1 lime juice of half

For the Vegetables

  • 3 bell peppers mixed colors, sliced
  • 1 large red onion sliced
  • 1 tbsp olive oil
  • 1/2 tsp salt
  • 1/4 tsp black pepper

For Serving

  • flour or corn tortillas warmed
  • fresh lime wedges
  • chopped cilantro
  • sour cream or Greek yogurt
  • sliced avocado
  • shredded cheese

Instructions
 

  • Preheat oven to 425°F (220°C). Line a large sheet pan with parchment paper.
  • Slice chicken into even 1/2-inch strips for uniform cooking.
  • In a bowl, mix olive oil, chili powder, paprika, cumin, garlic powder, onion powder, oregano, salt, and pepper. Toss chicken thoroughly until coated. Add lime juice and toss again.
  • Toss sliced peppers and onion with olive oil, salt, and pepper in a separate bowl.
  • Spread chicken on one side of the sheet pan and vegetables on the other in a single layer.
  • Roast for 18–22 minutes, stirring vegetables and flipping chicken halfway through.
  • Chicken is done when it reaches 165°F internally and vegetables are tender with slight char.
  • Optional: Broil for 2–3 minutes for deeper color. Rest 5 minutes before serving.

Notes

Avoid overcrowding the pan to prevent steaming. For extra char, broil briefly at the end. Leftovers store up to 4 days in the refrigerator and reheat well in a skillet.
Keyword Chicken Sheet Pan Dinner, Easy Fajita Recipe, One Pan Chicken, Sheet Pan Chicken Fajitas, Weeknight Chicken Dinner