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Sheet Pan Steak Fajitas

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Sheet Pan Steak Fajitas are an easy and delicious dinner option, loaded with seasoned steak, colorful bell peppers, and onions, all roasted to perfection in the oven. Serve them with tortillas, avocado, cilantro, and lime for a quick, flavorful meal! Perfect for a weeknight dinner or a casual get-together.

Ingredients

Scale
  1. For the Fajitas:

    • 1 pound flank steak
    • 1 tablespoon lime juice
    • ¼ cup olive oil, divided
    • 3 tablespoons fajita seasoning, divided
    • 1 yellow onion, sliced
    • 1 red bell pepper, sliced
    • 1 green bell pepper, sliced
    • 1 yellow bell pepper, sliced
    • Salt and pepper to taste

    For Serving:

    1. Small flour or corn tortillas
    2. Limes
    3. Cilantro
    4. Avocado (optional)

Instructions

  • Preheat the oven to 400°F (200°C) and line a baking sheet with foil. Slice the flank steak into ½-inch strips.
  • In a bowl, whisk together 2 tablespoons of olive oil, 1 ½ tablespoons of fajita seasoning, and the lime juice to make a marinade.
  • Add the sliced steak and marinade to a resealable bag and let it rest while you prepare the vegetables.
  • Slice the bell peppers and onion into ½-inch slices. Toss the vegetables in the remaining olive oil, fajita seasoning, and salt and pepper.
  • Spread the vegetables onto the prepared sheet pan, leaving room for the steak. Place the steak strips on the pan next to the vegetables.
  • Bake the fajitas for 12-15 minutes, tossing and turning the vegetables and steak halfway through baking.
  • While baking, toast the tortillas and slice the limes and cilantro.
  • Once the steak is cooked through and the vegetables are tender, remove the sheet pan from the oven. Let the fajitas cool for a few minutes and serve with tortillas, lime wedges, cilantro, and avocado, if desired.

Notes

  • Feel free to use any combination of bell peppers, or add more vegetables like zucchini or mushrooms.
  • For a spicier kick, add sliced jalapeños or sprinkle red pepper flakes over the fajitas before baking.
  • Adjust the seasoning to taste if you prefer a stronger flavor.

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