These Sheet Pan Steak Fajitas are made with flank steak, bell peppers, and onions tossed in a homemade seasoning blend and roasted at 425°F. They cost just $4.68 per serving and are ready in under 30 minutes.
Fajita night is one of the most requested dinners in our house, and this sheet pan version makes it even easier. Everything cooks together on one pan with very little cleanup. At $4.68 per serving, it feeds six and makes an easy weeknight dinner.
Why You’ll Love This Recipe!
- Budget Friendly — $28.07 total for a restaurant-quality steak fajita dinner
- One sheet pan and 30 minutes
- The homemade fajita seasoning blend is so much better than any store-bought packet
- Set up a topping bar and everyone builds their own
- Perfect for weeknight dinners and feeding a hungry crowd fast
After 14 years of developing recipes, I know the best weeknight fajitas deliver restaurant quality flavor without requiring extra time in the kitchen. These Sheet Pan Steak Fajitas do exactly that.
If you love easy sheet pan dinner recipes like this one you will also love our Sheet Pan Shrimp Fajitas, Sheet Pan Chicken Fajitas, and Sheet Pan Dinners. They are all budget-friendly, made with simple ingredients, and the kind of one-pan weeknight dinners your family will request all year long.
Ingredients
For the Fajitas:
- Flank steak — sliced into ½-inch strips against the grain for the most tender result. Skirt steak is the most direct substitute with a slightly more intense beefy flavor. Always pat dry before tossing with seasoning for the best roasted result
- Bell peppers, red and yellow — sliced into strips the same width as the steak for even roasting. Red and yellow give the most vibrant colorful presentation. Any combination of bell pepper colors works
- Yellow onion — halved and sliced from top to root which gives you strips that hold together during roasting rather than falling apart into rings
- Olive oil — helps the seasoning adhere to everything and promotes browning in the hot oven
- Lime juice — drizzled fresh over everything right after roasting for a bright citrus finish that ties all the flavors together. Always use fresh squeezed
- Fresh cilantro — scattered over the finished fajitas for a bright herby finish. Omit if your family is not a cilantro fan
For the Seasoning:
- Chili powder — the primary seasoning that gives the fajitas their bold warm depth
- Paprika — adds color and a subtle smoky sweetness throughout
- Cumin — the most essential fajita spice that gives this its authentic Tex-Mex flavor profile
- Onion powder and garlic powder — adds savory depth without the moisture of fresh aromatics
- Dried oregano — adds a mild herby earthiness that rounds out the blend
- Salt and black pepper — essential seasoning throughout
- Cayenne pepper, optional — adds heat for those who want extra spice. Start with ¼ teaspoon and add more to taste
Carrie’s Tip: Always slice the flank steak against the grain — look at the direction the muscle fibers run and cut perpendicular to them. Slicing with the grain gives you tough chewy bites no matter how perfectly the steak is cooked. Slicing against the grain cuts through the muscle fibers and gives you tender bites that practically melt in your mouth. The difference is dramatic and it is the single most important step for tender sheet pan steak fajitas.
How to Make Sheet Pan Steak Fajitas
Step 1 – Preheat the oven to 425°F. Spray a large sheet pan with non-stick cooking spray or line it with foil for easy cleanup.
Step 2 – In a large bowl, combine the seasonings, steak, peppers and onions and olive oil. Toss until everything is coated in the oil and the seasoning mixture.
Step 3 – Spread the steak and vegetables into an even layer on the prepared sheet pan, keeping the steak from overlapping as much as possible.
Step 4 – Bake for 12-15 minutes, stirring halfway through, until the steak is cooked to your desired doneness and the vegetables are tender-crisp.
Step 5 – Wrap the tortillas tightly in foil and place them in the oven during the last 5 minutes of cooking to warm.
Step 6 – Remove the sheet pan from the oven. Drizzle the lime juice over the steak and vegetables and sprinkle with the chopped cilantro.
Step 7 – Serve in the warm tortillas with your favorite toppings and enjoy!
Steak Doneness Cheat Sheet
- Rare: 120-125°F — pull the pan a minute or two early and check often.
- Medium-Rare: 130-135°F — the sweet spot for most flank steak.
- Medium: 140-145°F — still juicy, less pink in the center.
- Medium-Well: 150-155°F — check early since thin strips climb in temperature fast.
Remember: the steak keeps cooking for a minute or two after it leaves the oven, so pull it about 5 degrees before your target.
Tips for Success
- Slice against the grain. The single most important step for tender steak
- Do not overlap the steak. Overlapping the steak causes steaming instead of roasting. Make sure to spread everything as flat and spread out as possible for the best caramelized edges
- Stir halfway through. Flipping everything at the halfway point ensures even cooking and browning on both sides
- Do not overcook. Flank steak cooks fast at 425°F. Check at 12 minutes and pull the moment the steak is done to your preference since it continues cooking slightly after coming out of the oven
- Line the pan with foil. Fajita seasoning with olive oil sticks significantly to an unlined pan. We recommend to always line with foil for the fastest possible cleanup
Topping Bar Ideas
Set out all the toppings before the fajitas come out of the oven so everyone can build their own the moment dinner hits the table:
- Sour cream — the most classic cooling contrast to the bold fajita seasoning
- Pico de gallo — fresh bright and the best complement to the lime and cilantro already on the steak
- Shredded cheese — Mexican blend or sharp cheddar both work beautifully
- Guacamole — creamy avocado against the spiced steak is an incredible combination
- Salsa — smoky roasted salsa pairs beautifully with the sheet pan roasted steak and peppers
- Sliced jalapeños — for heat lovers who want extra spice in every bite
Variations and Additions
- Swap flank steak for skirt steak for a slightly more intense beefy flavor with the same method
- Use chicken thighs or shrimp with the same seasoning blend for a different protein. If using shrimp, reduce cook time to 10 minutes.
- Add sliced mushrooms or zucchini to the sheet pan alongside the peppers and onion for extra vegetables
- Use corn tortillas instead of flour for a gluten-free version
- Add a can of drained black beans to the sheet pan for extra protein and fiber
Storage and Freezer Instructions
Refrigerator
- Store the steak and vegetables in an airtight container for up to 5 days.
Reheating
- Reheat in a skillet over medium heat for 2–3 minutes for the best result. Microwave in 30-second intervals also works. Always reheat the tortillas separately wrapped in a damp paper towel in the microwave for 20 seconds.
Meal Prep
- The seasoning blend can be mixed and the steak and vegetables can be sliced and stored together in the refrigerator for up to 24 hours before roasting. Then pour everything onto the sheet pan and bake when ready for a true dump and roast dinner
Freezer
- Let the steak and vegetables cool completely, then freeze them in a single layer for 1 to 2 hours. Transfer to a freezer safe bag and freeze for up to 3 months. Thaw overnight in the refrigerator before reheating.
Leftover Makeover
Turn leftover fajitas into quesadillas by chopping the steak and veggies smaller and folding them into a tortilla with shredded cheese, then crisping in a skillet. My favorite is to pile them over tortilla chips with melted cheese for a fast sheet pan nacho night.
Frequently Asked Questions
Flank steak and skirt steak are both excellent choices. Flank steak is slightly leaner and skirt steak has a more intense beefy flavor. Always slice both against the grain for the most tender result.
At 425°F flank steak strips reach medium doneness in approximately 12–15 minutes. Always check at 12 minutes and use an instant-read thermometer if needed. Medium is 140°F–145°F internally.
Yes. Toss the steak and vegetables with the seasoning and olive oil and refrigerate for up to 24 hours before roasting. The extra marinating time actually deepens the flavor significantly.
Yes. Chicken thighs sliced thin take approximately 15–18 minutes. Shrimp takes only 8–10 minutes. Use the same seasoning blend for both.
Your steak may be tough if it was sliced with the grain. Always cut against the grain for the most tender bite.
No. Tossing the steak and vegetables with the seasoning right before roasting keeps this recipe quick and easy. For extra flavor, you can season everything up to 24 hours ahead, but it is not required.
More Easy Sheet Pan Dinners
These Sheet Pan Steak Fajitas are a family favorite with tender flank steak, colorful peppers, and bold homemade seasoning. They cost just $4.68 per serving, use one pan, and are ready in under 30 minutes.
If you make it leave a star rating and a comment below — I love hearing what toppings your family piled on first and whether the sheet pan method has replaced stovetop fajita night for you the way it has for us!
Sheet Pan Steak Fajitas
Ingredients
- 2 lbs flank steak sliced into ½-inch thick strips (slice extra-wide strips in half)
- 2 bell peppers red and yellow, cored and sliced into strips
- 1 medium yellow onion halved and sliced from top to root
- 1 tablespoon olive oil
- Juice of 2 fresh limes
- 3 tablespoons chopped cilantro
- 12-15 small flour tortillas
For the Seasoning:
- 1 tablespoon chili powder
- 1 teaspoon paprika
- 2 teaspoons cumin
- ½ teaspoon onion powder
- ½ teaspoon garlic powder
- ¼ teaspoon dried oregano
- 1 teaspoon salt
- ½ teaspoon black pepper
- ¼ teaspoon cayenne pepper optional
Optional Toppings:
- Sour cream
- Pico de gallo
- Shredded cheese
- Guacamole
- Salsa
See how we calculate recipe costs.
Instructions
- Preheat the oven to 425°F. Spray a large sheet pan with non-stick cooking spray or line it with foil for easy cleanup.
- In a large bowl, combine the seasonings, steak, peppers and onions and olive oil. Toss until everything is coated in the oil and the seasoning mixture.
- Spread the steak and vegetables into an even layer on the prepared sheet pan, keeping the steak from overlapping as much as possible.
- Bake for 12-15 minutes, stirring halfway through, until the steak is cooked to your desired doneness and the vegetables are tender-crisp.
- Wrap the tortillas tightly in foil and place them in the oven during the last 5 minutes of cooking to warm.
- Remove the sheet pan from the oven. Drizzle the lime juice over the steak and vegetables and sprinkle with the chopped cilantro.
- Serve in the warm tortillas with your favorite toppings and enjoy!
