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A sheet pan chicken fajita on a plate.
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Sheet Pan Chicken Fajitas

An easy 40 minute meal that's loaded with juicy chicken, sliced pepper, and onions.
Course Main Course
Cuisine Mexican
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings 4 servings (2 fajitas per person)
Calories 319kcal

Ingredients

  • 3 tablespoons homemade fajita seasoning
  • 1 1/2 lbs boneless skinless chicken breasts cut into strips
  • 1 red bell pepper sliced into strips
  • 1 yellow bell pepper sliced into strips
  • 1 green bell pepper sliced into strips
  • 1 yellow onion sliced into strips
  • 3 tablespoons vegetable oil can use olive oil (see notes)

For serving

  • sour cream
  • flour tortillas
  • fresh cilantro
  • guacamole
  • cheese (Mexican cheese blend is my favorite)

Instructions

  • Preheat oven to 400°F. Spray a baking sheet with cooking spray. 
  • Place the sliced peppers, onions, and sliced chicken on the baking sheet. Drizzle the olive oil over everything, then sprinkle the fajita seasoning overtop. Using your hands, toss so that everything is evenly coated. Spread into an even layer (don’t want chicken overlapping). 
  •  Roast in the oven for 25-30 minutes, tossing halfway through baking time. The veggies will be tender and chicken cooked through. Before removing from the oven cut a chicken in half (or use an instant read thermometer to make sure the chicken has reached an internal temp of 165°F). 
  • Remove from the oven. Serve the filling inside warm tortillas, topped with your desired toppings. 

Notes

You can use olive oil if you'd like. Olive oil doesn't have as high of a smoke point as vegetable oil, but we are only roasting the veggies and meat at 400°F which is safe enough for olive oil usage. 
For an even quicker dinner trick, use a seasoning packet from the store. That’s totally fine. However, I’d encourage you to make the homemade mix of mine and double or triple it and keep some on hand for later! 
Fajita Toppings:
  • Sour cream (use a low fat sour cream or even Greek yogurt for a healthier option.)
  • Cilantro
  • Guacamole
  • Pico de gallo
  • Shredded cheese
  • Fresh diced tomatoes
  • Shredded lettuce
  • Spinach
  • Shredded cabbage (for a crunchier texture)
  • Squeeze of lime
Storing: Store leftovers in an airtight container in the fridge for up to 5 days. (Note, this recipe makes about 4 servings, 2 fajitas per person.)

Nutrition

Calories: 319kcal | Carbohydrates: 8g | Protein: 37g | Fat: 15g | Saturated Fat: 10g | Cholesterol: 109mg | Sodium: 201mg | Potassium: 847mg | Fiber: 2g | Sugar: 3g | Vitamin A: 1152IU | Vitamin C: 121mg | Calcium: 21mg | Iron: 1mg