Sheet-Pan Chicken Fajitas with Peppers & Onions

One-Pan Baked Chicken Fajitas making your dinner prep easy, quick, and delicious!

My dad asked for a low-key birthday this year—no restaurant, no fuss. I wanted to make something quick, flavorful, and with minimal cleanup so he wouldn’t have to do the dishes. A sheet-pan dinner felt perfect.

I had extra peppers from a recent Mexican quinoa salad and some chicken thawing, so I turned it into a simple fajita-style meal. It’s great served over rice or leftovers from the salad, and the flavors deepen if it sits a bit before serving.

This one-pan dinner is effortless and wonderfully tasty. All you need is chicken, mixed peppers, a red onion, a few pantry spices, and olive oil.

img 1319 1
Erin Antoniak

One-Pan Baked Chicken Fajitas

5 from 17 votes
One-pan chicken fajita sheet meal is quick to prepare, easy to clean up, and full of flavor.
Prep Time 7 minutes
Cook Time 23 minutes
Total Time 30 minutes
Servings: 4 -6 servings
Course: dinner, Main Course
Cuisine: Mexican
Calories: 321
IngredientsMethodNutritionNotes

Ingredients

  

  • 1 1/2 lbs boneless chicken breasts sliced into strips
  • 1 red, green, orange, and yellow pepper sliced into strips
  • 1 red onion sliced
  • 2 tsp. chili powder
  • 1 tsp. salt
  • 1/2 tsp onion powder
  • 1/2 tsp garlic powder
  • 1 tsp paprika
  • 1/2 tsp cumin
  • 1/4 tsp cayenne or more if you like it spicy
  • Olive oil

Method

 

  1. Preheat oven to 400°F (200°C).
  2. Toss the sliced peppers and red onion with a little olive oil so they’re evenly coated.
  3. Spread the veggies on a parchment-lined baking sheet and bake for 8 minutes to give them a head start.
  4. In a bowl, combine the chicken strips with chili powder, salt, onion powder, garlic powder, paprika, cumin, and cayenne. Toss until well coated.
  5. Add the seasoned chicken on top of the par-baked veggies on the sheet pan.
  6. Bake for about 15 minutes, until the chicken is cooked through and the veggies are tender.
  7. Toss everything together on the pan and serve hot—serve with tortillas, rice, or a salad.

Nutrition

Calories: 321kcalCarbohydrates: 6gProtein: 37gFat: 16gSaturated Fat: 5gSodium: 628mg

Notes

  • Bake the Veggies First: Roast the peppers and onion alone for about 8 minutes before adding the chicken. This helps everything finish evenly without undercooked or overcooked pieces.
  • Coat the Chicken Evenly: Toss the chicken strips with the spices in a bowl until each piece is well covered so the seasoning is distributed evenly.
  • Use a Variety of Peppers: Red, green, orange, and yellow peppers offer different flavors and colors; using a mix makes the pan vibrant and tasty.

Tried this recipe?

Let us know how it was!