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Easy Sheet Pan Loaded Beef Fajitas Recipe with Caramelized Peppers for Perfect Dinner

sheet pan beef fajitas - featured image

A quick and easy sheet pan recipe featuring tender, seasoned beef strips roasted with caramelized bell peppers and onions, perfect for a flavorful and fuss-free dinner.

Ingredients

Scale
  • 1.5 pounds flank steak or skirt steak, thinly sliced against the grain
  • 3 large bell peppers (red, yellow, and green), sliced into strips
  • 1 large yellow onion, thinly sliced
  • 3 tablespoons extra virgin olive oil
  • 3 cloves garlic, minced
  • 1 teaspoon smoked paprika
  • 1 teaspoon ground cumin
  • 1/2 teaspoon chili powder
  • 1/2 teaspoon onion powder
  • 1/2 teaspoon salt (adjust to taste)
  • 1/4 teaspoon black pepper
  • Juice of 1 lime
  • A small handful fresh cilantro, chopped (optional)
  • Warm flour or corn tortillas, for serving

Instructions

  1. Preheat the oven to 425°F (220°C).
  2. Slice the beef thinly against the grain into strips about 1/4 inch thick.
  3. Core and slice the bell peppers into strips about 1/2 inch wide. Peel and thinly slice the onion.
  4. In a large mixing bowl, combine olive oil, minced garlic, smoked paprika, cumin, chili powder, onion powder, salt, and black pepper. Stir until well blended.
  5. Add the sliced beef, peppers, and onions to the bowl and toss well until everything is evenly coated with the spice mixture.
  6. Spread the beef and vegetables in a single layer on a large rimmed sheet pan, avoiding overcrowding.
  7. Roast in the oven for 15-20 minutes, tossing or flipping the ingredients halfway through (around 10 minutes) for even cooking and caramelization.
  8. Check that the beef is cooked to medium rare to medium and the peppers are tender and caramelized on the edges.
  9. Remove from oven, squeeze fresh lime juice over the top, and sprinkle with chopped cilantro if using.
  10. Serve immediately by loading the beef and peppers into warm tortillas with your favorite toppings.

Notes

Let beef come to room temperature for 15 minutes before cooking for better searing. Avoid overcrowding the pan to ensure proper caramelization. Toss ingredients halfway through cooking to prevent uneven cooking. For extra char, broil for 1-2 minutes at the end but watch carefully to avoid burning. Use corn tortillas for gluten-free option and skip cheese or sour cream for dairy-free.

Nutrition

Keywords: beef fajitas, sheet pan dinner, caramelized peppers, quick dinner, easy fajitas, weeknight meal, one pan meal