These Grilled Steak Fajitas are a delicious summer meal made easy on the barbecue. Flank steak is marinated in a savory fajita sauce and served with sautéed peppers and onions in soft tortillas.
Fresh, easy and delicious, these flank steak fajitas are a fun dinner any time of year!
This post is sponsored by Mirum, all opinions expressed are my own.
Steak Fajitas are a great recipe to feed a crowd and loaded with flavor! They’re easy to make and fun to share with a collection of our favorite toppers like Homemade Salsa, sliced jalapenos and cheese!
Like many of you, I’m obsessed with spicy foods, including toppers for fajitas (I could literally eat Queso Dip by the bucket full).
Best Steak For Fajitas
The steak we use for beef fajitas is usually flank steak or skirt steak. I love skirt steak, however our store doesn’t always have it so I more commonly use flank steak.
Fajita Marinade
The key to making the best fajitas is leaving time for the beef to marinate. Not only does it add flavor, but the acidity of lime juice can help break down the proteins in the steak, resulting in tender fajita meat. We marinate at least 4 hours or up to 8 hours.
If you’re using a more tender cut of beef (such as ribeye) you’ll want to reduce your marinating time to about 30 minutes.
How To Make Steak Fajitas
To make these steak fajitas:
- Marinate: Marinate the flank steak in the fajita marinade ingredients for 4-8 hours.
- Grill: Grill steak to medium rare (135-140°F) or to desired temperature. Remember let the steak rest at least 10 minutes before slicing to keep it extra juicy (while you cook the peppers/onions).
- Saute: Saute the onions for a few minutes over medium heat. Add peppers and spices, then saute an additional 3-5 minutes or until they’re tender crisp
Once rested, it’s important to cut the flank steak across the grain. You will see the direction of long fibers running down the steak, you want to be sure to cut across the fibers to ensure tender meat.
Toppings For Steak Fajitas
When making steak fajitas, we put out an array of toppings to enjoy and let everyone dress them up the way they like! Place your steak slices and a spoonful of peppers & onions in soft tortillas and top with desired toppings: .
- Pico de Gallo
- Cilantro
- Sour Cream and Salsa
- Tomatoes and fresh sliced jalapenos
- Mango Salsa
- Hot sauce
More Recipes You’ll Love
- Easy Chicken Fajitas – family favorite!
- Skillet Shrimp Fajitas – one pan
- Oven Fajitas – super easy
- Homemade Taco Seasoning Recipe – great addition to fajitas!
- Grilled Chicken Fajitas – so flavorful
Grilled Steak Fajitas
Ingredients
Beef
- 1 ½ pounds flank steak or skirt steak
- ¼ cup fresh lime juice
- ¼ cup vegetable oil
- 1 teaspoon cumin
- 2 teaspoons chili powder
- ½ teaspoon dried oregano
- 1 tablespoon Worcestershire sauce
- ½ teaspoon salt and black pepper
- 2 cloves garlic minced
Vegetables
- 1 white onion sliced
- 1 green bell pepper seeded & sliced
- 1 red bell pepper seeded & sliced
- 2 tablespoons olive oil
- ½ teaspoon cumin
- salt and pepper to taste
For Serving
- 8 medium flour tortillas 8-inch
- toppings as desired
Instructions
- Combine beef, lime juice, olive oil, cumin, chili powder, oregano, Worcestershire sauce, garlic, salt and pepper to taste. Marinate at least 4 hours or overnight.
- Preheat grill to medium-high heat. Grill the steak 7-9 minutes. Flip over and cook an additional 5-7 minutes or to reach desired doneness. Rest 10 minutes before slicing.
- Drizzle onions and peppers with olive oil and season with salt, pepper and cumin.
- Heat 2 tablespoons olive oil to a pan and add onions. Cook 3-4 minutes. Add sliced peppers and cook and additional 3-5 minutes or until tender crisp.
- Slice steak across the grain. Fill warmed tortillas with steak, peppers and desired toppings.
Nutrition Information
Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.
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Making these steak fajitas and your grilled chicken fajitas for several families on an upcoming trip. Your chicken recipe mentions freezing the chicken direcly in the marinade and then defrosting and grilling. Think I could do the same with this recipe? Would help immensely with prep prior to travel!
Hi Beth, that should work great for this recipe. Enjoy!
The marinade made the steak so delicious and very tender. Will definitely make this again
So glad you enjoyed it!
I used sirloin steak that I had in the freezer. This was easy to make, just need to make the marinade early so it has time. I halved the chili powder since what we have is spicy. Grilling the steak gave it a nice flavor, even in the winter. We really enjoyed this and will be making it again. Thanks for the recipe!
This fajitas recipe turned out perfect.
Did the flank steak in my cast iron skillet a half hour early so it could cool to cut into strips. Added the pepper mix to the saved fond then the meat Made a perfect gravy
I added some chili seasoning to the pepper onions before cooking.
So glad you loved it Mike!
Where do you put the Worcestershire sauce. An$ the quarter cup of oil. Do they go in the marinade?
Hi Steve, they do go in the marinade with the beef!
what can I use instead of cumin? Found cumin to be a bit overpowering, but that could be because I made a dish for 2. thxs
You can leave the cumin out if you find it too much. If you reduced the dish but left the full amount of seasonings, they would have a stronger flavor so when reducing the dish, be sure to reduce the seasonings as well.
I have tried this fajitas recipe at my home and it is very easy to make and really delicious in taste. Thanks for sharing this recipe with all of us.
You didn’t tell us what the marinade included???
Hi Mike, marinade ingredients are combined with the beef in step one :)
You didn’t mention quantities for garlic and chili powder. Could you help?
Sorry for the confusion, I’ve updated the recipe.