Sheet Pan Steak Fajitas

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Sheet Pan Steak Fajitas taste just like your favorite Mexican dish with tender steak, bell peppers, onions, and the best fajita seasoning. Ready in less than 20 minutes!

316 CAL 15g CARBS 13g FAT 34g PROTEIN 6
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These easy Sheet Pan Beef Fajitas made with flank steak, bell peppers, red onions, and our homemade fajita seasoning come together in no time and couldn't be more delicious.  In less than thirty minutes, you can have restaurant-quality fajitas on the table for a healthy, family-friendly dinner. 

There is nothing I love more than an easy sheet pan dinner that has my whole family asking for seconds. These sheet pan steak fajitas are exactly that. The process from start to finish couldn't be easier.

Slice up some steak, bell peppers, and red onions. Add lime juice and fajita seasoning. Spread everything out on a sheet pan. Wait 15 minutes and dinner is done. 

While the steak cooks, you can make some quick side dishes. Heat up some flour or corn tortillas. Warm up a can of refried beans or black beans. Slice up some avocados, cilantro, and lettuce. Grab a bag of shredded cheese, sour cream, and some store-bought pico de gallo or salsa.  Build your own tacos or fajita bowls.

That's all you need for a meal that seriously tastes like it came from a restaurant. 

Lay it all out on the table and let everyone build their own fajitas. It's fun, it's healthy, and it is always a crowd-pleaser. One more idea for those looking for something a little untraditional. These steak fajitas can be used to make rice bowls (with regular or cauliflower rice), salads, quesadillas, burritos, and even taste amazing wrapped up in lettuce for a low carb treat. 

Steak fajitas in a sheet pan with bell peppers, red onions, flour tortillas, cilantro, and limes.

What cut of beef is best for fajitas?

When making fajitas, I like flank steak since it is lean, stays tender, and is easy to find and work with.  However, you can also use skirt steak, sirloin steak, or rump steak as well to make fajitas. 

For all of these steak choices, make sure to slice it thin and against the grain. This helps it to stay tender. You can also use more expensive cuts, really anything will work.

Traditionally, fajitas were made with "faja" steak, which refers to skirt steak, which comes from the belt or girdle of the cow. It was a dish made by Mexican ranchers on the border of Mexico and Texas. 

What to serve with steak fajitas?

These fajitas are a meal on their own with some warm tortillas and toppings. However, around our home, the more toppings and side dishes the better. Here are some favorites:

  • Start traditional with warmed flour tortillas, shredded lettuce, pico de gallo, limes, and shredded cheese. 
  • Kick things up a notch with some sliced avocado or guacamole. 
  • Add fiber to the meal with some quick refried beans or black beans. I like to top mine with some pico de gallo and melted cheese. 

Can I add other veggies to the fajitas?

Many people like to kick up the veggies in this recipe or substitute in other vegetables if they can't eat bell peppers or onions.  The main thing to keep in mind when adding extra vegetables or swapping in vegetables is that you want something that cooks quickly. Some favorites include zucchini, summer squash, thinly sliced carrots, fresh corn, thinly sliced butternut squash, and cauliflower. 

The other thing to remember is that you don't want to overcrowd the pan. If you are adding lots of extra veggies, you may need to use two sheet pans to make sure the meat and vegetables aren't piled up on the sheet pan. You want a single layer for the best results. 

How to make homemade fajita seasoning?

Instead of buying store-bought fajita seasoning, make it at home using spices you already have in the pantry. Here is a basic fajita seasoning recipe that can be adjusted to make it more or less spicy. 

This recipe makes more than you need for this recipe, but the extra can be stored for future use. 

  • 3 tbsp chili powder
  • 1 tbsp ground cumin
  • 1 tbsp paprika
  • 1 tbsp garlic powder,
  • 1.5 tsp onion powder
  • 1.5 tsp kosher salt
  • 3/4 tsp ground pepper

Beef fajitas made on a sheet pan with red onion, bell peppers, lime juice, fajita seasoning, and cilantro served with flour tortillas and avocado.

Can I make these on the grill?

These fajitas work great on the gill. There are a few different options for preparation. The easiest is preparing the steak fajitas in the same way as the recipe below and then simply cooking them in a grill basket, grill sheet, or large piece of heavy duty foil on the grill. They will cook in about 7-10 minutes. 

Another option is to keep the steak whole, like you would for carne asada, and marinate it in the fajita spices and lime juice. Cook it whole to your liking and then thinly slice against the grain., The peppers and onions can also be grilled in larger pieces and then sliced before serving.

Looking for more fajita recipes

The Recipe
Sheet pan steak fajitas made with homemade fajita seasoning, flank steak, bell peppers, and onions on a sheet pan.

Sheet Pan Steak Fajitas

316 CAL 15g CARBS 13g FAT 34g PROTEIN 6
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  • 1.33 lbs lean flank steak, sliced thin
  • 1 tbsp olive oil
  • 2 limes, juiced
  • 1 red onion, sliced
  • 2 bell peppers, sliced (any colors)

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Start by slicing the flank steak with a sharp knife into thin strips. You may have to cut longer strips in half or in thirds depending on the size of the flank steak. Cut the peppers and onions in thin pieces as well.

Sliced flank steak, bell peppers, and onions on a cutting board.

Toss the beef, red onion, and bell peppers with the olive oil, lime juice, and fajita seasoning and let rest for 15-30 minutes. I like to do this in a ziploc bag for easy clean up. This step can be skipped if you are short on time.

Beef and vegetables in a ziploc bag with lime and fajita seaosning.

Preheat the oven to 425 degrees. Spray a baking sheet with cooking spray. You can also cover with foil for easier cleanup. Spread the steak and vegetables in a single layer on the baking sheet.

Steak fajitas laid out on a sheet pan before going in the oven.

Place in the oven and cook for 10-12 minutes, until the steak until the vegetables are tender-crisp. Turn the oven up to broil to add some char and crispiness to the steak for the last 2 minutes of cooking. One important note, the peppers and onions will still have some bite and texture when cooked this way. If you prefer a softer vegetable, place them in the oven 10 minutes before adding the steak.

Cooked beef fajitas on a sheet pan with peppers and onions.


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Nutritional Facts
Serving Size: about 1 cup
Amount Per Serving
Calories 316
Calories from Fat 118
% Daily Value *
Total Fat 13g
Saturated Fat 5g
Monounsaturated Fat 4g
Polyunsaturated Fat 1g
Cholesterol 104mg
Sodium 754mg
Total Carbohydrate 15g
Dietary Fiber 3g
Sugars 3g
Protein 34g

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Nutritional Values provided are estimates only and may vary based on the preparation method.


To make your own fajita seasoning, combine 1 tbsp chili powder, 1 tsp ground cumin, 1 tsp paprika, 1 tsp garlic powder, 1/2 tsp onion powder, 1/2 tsp kosher salt, and 1/4 tsp ground pepper.
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About the author Meet Kristen McCaffrey
Hi, I’m the cookbook author, recipe developer, and food enthusiast behind Slender Kitchen. I am obsessed with making healthy food that is easy to prepare and absolutely delicious. Meal planning is my secret weapon and I hope I can make meal time easier for you with our tried and tested recipes and foolproof meal plans. Learn More
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