Get restaurant quality fajitas right at home! These savory Grilled Steak Fajitas will be your new favorite Tex-Mex meal. Made with tender, marinated flank steak and grilled with peppers and onions, this flank steak fajitas marinade is simple to make and completely delicious!
As soon as the warm weather peaks out from the cold, dark days of winter, I’m firing up my grill. Yes, I have a grill. Yes, it is me who uses it – not, necessarily my husband.
Grilling is definitely one of my favorite ways to cook, especially in the spring and summer. (Although, I will say that I’ve been known to heat up the grill nearly all months of the year.) There is something about the taste and aromas that come from a fresh sear of fire that are unlike anything else.
These Grilled Steak Fajitas are my new favorite grilling recipe, and will definitely be a mainstay on our dinner table all spring and summer long. The super simple 1-minute flank steak fajitas marinade is how you add amazing flavor to this grilled steak for fajitas and tacos.
Here’s the simple steps to making these delicious Grilled Steak Fajitas:
What cut of meat is best for steak fajitas?
Flank steak is a fantastic cut of beef for making fajitas. You can also use skirt steak or sirloin.
Where do you get flank steak?
Costco has a good selection of beef, and has a great price on flank steak. They also carry the mini peppers and red onions for fajitas.
Check out my post for all the Things I Buy at Costco for Costco Dinner Ideas and Costco Meals.
How do I make steak fajitas marinade?
Making this simple flank steak fajitas marinade takes just a minute. Measure 1/4 cup of water, 1/4 cup of olive oil, 2 Tablespoons of lime juice and 2 tablespoons of homemade taco seasoning to a bowl. Whisk together well.
Place the flank steak into a resealable zip-top bag, or a shallow baking dish. Pour the marinade over the top of the steak.
Refrigerate the marinated beef anywhere from 2 – 24 hours. The longer the meat is in the marinade, the more flavorful and tender the steak will be.
How do I grill peppers and onions for fajitas?
For these fajita vegetables, I chose to use red onions and mini sweet peppers. If you’re unable to find mini sweet peppers, feel free to use regular bell peppers that have been cut into pieces.
When grilling vegetables, make sure you either pre-soak wooden skewers or use metal skewers. After skewering the vegetables, lightly brush with olive oil and add salt and pepper to taste.
Place on the hot grill grates and turn after 4-6 minutes, grilling on each side.
How do I grill steak for steak fajitas?
Heat your gas or charcoal grill to medium high heat. Once preheated, add the steak and vegetables. Turn the vegetable skewers often to ensure they have a light, even char on each side; ideally every 4-6 minutes.
The flank steak will need to cook for approximately 8-10 minutes per side for a medium-rare sear. This particular flank steak was a bit thicker, and required about 10 minutes per side.
How do I know when flank steak is done?
To ensure proper cooking temperature, use a meat thermometer to gauge the internal temperature is at or near 130-135 degrees. As always with any cut of beef, feel free to cut into the meat using a steak knife to check for the proper wellness that you prefer.
Let the Meat Rest and Slice Vegetables, Heat Tortillas
Once the steak and vegetables have come off the grill, let the meat rest for approximately 10 minutes. This will ensure the steak retains the juices that make it delicious! While the meat rests, slice the peppers and onions for serving.
Slice the flank steak into thin strips.
What tortillas are best for fajitas?
Choose a small or medium sized corn tortilla for fajitas.
If you prefer, lightly heat your tortillas on the grill – they won’t need long to heat. Just 1 minute per side.
Build your Grilled Steak Fajitas and Enjoy!
These fajitas are great served family-style in the middle of the table for everyone to enjoy. These delicious steak fajitas are fantastic when served with avocado slices, lime wedges for juice, sour cream, shredded cheese and fresh cilantro.
Looking for some sides to go with your steak fajitas? Here are some of my most popular Tex-Mex sides:
- Classic Pico de Gallo Salsa
- Chick fil A Creamy Salsa Dressing
- Black Bean Corn Salsa
- Homemade Taco Sauce Recipe
- Loaded Guacamole
- Tropical Pineapple Mango Salsa
- Cucumber Tomato Avocado Salad
- Check out my tutorial over at Genius Kitchen for How to Make Salsa.
What drinks go with fajitas?
These fajitas are also fantastic when served with a fresh, delicious margarita! Here are a most popular margarita recipes:
- Pineapple Margaritas
- Blue Curacao Margaritas
- Strawberry Lime Margaritas
- Skinny Margaritas
- Mango Margaritas
- Coconut Margaritas
- Raspberry Margaritas
- Blackberry Margaritas
If you loved these Grilled Steak Fajitas, check out some of my other fantastic Tex Mex recipes:
- Sheet Pan Chicken Fajitas
- Grilled Steak Kabobs
- Rotisserie Chicken Tacos
- Sour Cream Enchiladas
- Sheet Pan Shrimp Fajitas
- Cheesy Taco Tater Tot Casserole
- Easy Baked Mini Tacos
- Loaded Steak Nachos
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Grilled Steak Fajitas
Equipment
- Gallon sized Zip-Lock Bags Ideal for marinating chicken and steak, these zip-lock bags keep everything sealed and spill-proof for refrigeration.
- Grilling Tongs These stainless steel grilling tongs by OXO are perfect for quick grilling.
- Cutting Boards This 3-Pack of non-slip cutting boards are a fantastic tool for every home cook.
Ingredients
Marinade:
- 2 lb. flank steak
- 1/4 cup water
- 1/4 cup olive oil or avocado oil
- 2 Tablespoons lime juice
- 2 Tablespoons Homemade Taco Seasoning
Vegetables:
- 1 medium red onion peeled & quartered
- 16 mini sweet peppers any color
- 2 Tablespoon olive oil
- salt & pepper to taste
For Serving:
- Flour or Corn tortillas
Instructions
- Marinate the steak by whisking together the steak marinade; water, olive oil, lime juice and taco seasoning. Place flank steak in a resealable plastic bag, or dish with tight fitting cover. Pour marinade over meat. Marinate for at least 2 hours, or for up to 24 hours.
- Preheat your gas or charcoal grill to medium high heat.
- Skewer mini peppers and quartered onions. Brush lightly with olive oil and top with salt and pepper to taste.
- Place steak and vegetable skewers on hot grill. Cook steak for 6-8 minutes per side for a medium-rare doneness. Approximately 10 minutes per side for medium. Internal temperature of steak should read 130-135 degrees. Continually turn vegetables until all sides are lightly charred.
- Remove steak from grill and let rest 10 minutes before slicing. While meat is resting, slice vegetables for serving.
- If desired, lightly grill tortillas for a slight char, approximate 1 minute per side.
- Serve with loaded guacamole and southwestern corn salsa.
Notes
Nutrition
Wow these Grilled Steak Fajitas look incredibly delicious! =) Thank you for the recipe!
Delicious! Pinned this one! Thanks for sharing at the What’s for Dinner Party!
OH my goodness this looks amazing! Thanks so much for sharing at the To Grandma’s House We Go DIY, Crafts, Recipes and More Link party! Pinned this! Hope you join us again next week!
This recipe is featured at the Merry Monday party this week. Pinned and sharing. We look forward to seeing you at the new party going on now. Thanks for partying with us!
I just ate dinner, but this is making me hungry again. Pinned it and will be featuring it a summer grilling roundup.
These look fabulous! Nice idea for the 4th of July barbecue!
These sound delicious. I can’t wait to try them!