Sheet Pan Steak Fajitas

These tasty Sheet Pan Steak Fajitas are great for make-ahead meals. Tender flank steak is coated in a flavorful seasoning blend and broiled alongside a medley of colorful vegetables. They’re a guaranteed crowd-pleaser that the whole family will love.

Easy Sheet Pan Steak Fajitas Recipe

Like you, I’m always looking for ways to make my family’s favorites so we can have dinner on the table with the least fuss. Mexican inspired food is always a win for my boys, who I believe could eat it daily with no complaints. Recipes like my baked chicken taquitos, easy pull apart cheesy taco sliders and frito taco salad are just a few they request often. If you’d like to try your hand at making your own tortillas, checkout this recipe for homemade flour tortillas from Mom on Timeout.

Checkout this quick list of ingredients you’ll need to make Sheet Pan Flat Iron Steak Fajitas Recipe: (Scroll down for full printable recipe card.)

• Steak – Flat iron steaks cook quickly and have a tasty flavor.
• Peppers – This recipe uses a mix of peppers, poblano pepper or green bell pepper, red bell pepper, yellow bell pepper and orange bell pepper adds color and fiber.
• Onion – Red onion wedges for a hint of onion flavor. You could also use white onion or yellow onion.
• Oil – Olive oil or vegetable oil adds flavor.
• Lime Juice – Lime juice adds a hint of citrus and tenderizes the steak.
• Seasonings – Dark chili powder, ground cumin, garlic salt or plain salt, granulated garlic or garlic powder, onion powder and lemon pepper or black pepper.
• Serve – Warm tortillas, salsa, sour cream and fresh cilantro for serving.

How to Make the BEST Sheet Pan Steak Fajitas Recipe

• Season Steak – Place steaks in a plastic storage bag. In a small bowl, toss together chili powder, cumin, salt, garlic, onion powder and lemon pepper. Pour oil and lime juice over the steak, then add seasonings.
• Make Steak Marinade – Seal bag and toss to coat or rub into the meat, then seal. Place in fridge for at least 2-4 hours or overnight.
• Heat Oven and Prepare Pan – Turn oven to broil. Move oven rack to upper third of oven. Spray a large baking sheet with cooking spray.
• Arrange Steak Strips on Pan – Remove steak from fridge and arrange in middle of the prepared pan.
• Prep the Vegetables – Slice the peppers in similar size thickness for even cooking. Toss with remaining oil and seasonings. Arrange vegetables along the edge of pan around the flank steaks.
• Oven – Broil per the cook time in the recipe to your desired doneness. Add veggies to the pan.
• Roast Vegetables – Return pan to oven and cook vegetables while steaks rest. If the steak released excessive juice on the pan, drain that before placing the pan back into the oven.
• Serve – Slice steaks into thin strips across the grain and serve with warm tortillas with salsa, sour cream, cilantro or any of your favorite toppings.

Kitchen Equipment You’ll Need for Sheet Pan Steak Fajitas

• Large rimmed sheet pan or cast iron pan for baking.
• Sharp knife and chopping board for prepping the veggies and slicing the steak into thin strips.
• Measuring cups and spoons.
• Gallon size plastic storage bag for marinating the steaks.
• Use an Instant Read Thermometer to test the interior of the steaks with a meat thermometer. When checking the temperature insert a meat thermometer from the side pushing to the middle of the steak for the most accurate reading.

Recipe Variations, Tips and Substitutions

• Beef – This recipe uses flat iron steaks. You could use another cut of meat like flank steak or skirt steak, if that’s your preference. Each would broil slightly differently so adjust the time as needed.
• Cook to Your Desired Doneness – You can easily customize the recipe adjusting the baking time according to the thickness of the steaks and doneness you prefer. The steaks I used were around 1/2-3/4 inch thick and took about 8 minutes per side to cook to medium.
• Spices – You can adapt the spices and seasonings according to your taste. You could replace dark chili powder with chipotle chile powder or ancho chile powder. You could also use a prepared taco seasoning or fajita seasoning blend for a shortcut.
• What Kind of Bell Peppers are Best for Fajitas? You have lots of room here to personalize to your own taste, or you can simply use what you have on hand. I always go for a variety of colors and for this recipe I used red, orange, yellow and poblano peppers. I love the color combo, but at times make them with red peppers, poblanos and onion. Go with your personal preference and you’ll be good to go.
• Alternate Cooking Option – You can also cook flank steak fajitas in a cast iron skillet on the stovetop or on the grill over medium-high heat.
• Serving Options – Serve flank steak fajitas on warm corn tortillas or flour tortillas topped with sour cream, cheese, salsa, pico de gallo, sliced avocado or guacamole, or any of your favorite fajita toppings.

Storage and Leftovers

• Make-Ahead Tip – The peppers and onion can all be prepped one day in advance for a time saver. Slice them and place into plastic storage bags ans pop them into the fridge until you’re ready to prepare the fajitas.
• Leftovers – Store Sheet Pan Flank Steak Fajitas in an airtight container in the refrigerator for up to 3 days. You can also serve leftovers on salads, make wraps or quesadillas. 
• Reheating – Reheat gently in a non-stick skillet over medium heat, under the oven broiler or in an air fryer.
• Freezing – You can freeze leftovers for up to 1 month. Thaw in the fridge and reheat just before serving.

More Sheet Pan Recipes to Make

• Sheet Pan Kielbasa Yukon Gold Potato Hash can be enjoyed at any meal.
• Make this Sheet Pan Omelet in the oven in one fell swoop.
• Throw down a Sheet Pan Shrimp Boil any night of the week.
• Sheet Pan Italian Sausages with Parmesan Roasted Vegetables is a one pan meal.
• Easy Sheet Pan Breakfast Stacks allows you to personalize each one to suit your fancy.
• Sheet Pan Chili Lime Chicken Fajitas perfect for mexican night at home.

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Helpful Kitchen Items:

• Sheet Pan
• Cutting Board
• Olive Oil Dispenser
• Kitchen Utensils