These easy and delicious steak fajitas start with traditional Marinade of lime juice, crushed garlic and onions. They're the standard by which I judge all fajitas. Don't mess with Texas tradition!

I was chatting with a friend on Facebook the other day and the subject of fajitas came-up. We both shared how we love fajitas. And what's not to like; marinated grilled steak with charred vegetables accompanied by some of my favorite things like fresh chunky salsa, guacamole and low carb tortillas.
I remember when steak fajitas were gaining popularity in the 1980's. I was a teenager living in San Antonio, Texas. My Dad grilled steak fajitas on his oil-drum grill, and I remember ordering them at The Alamo Cafe, our favorite restaurant for fajitas at the time.
This was a time when fajita meant steak fajitas and chicken fajitas were much less popular. In Texas, beef is king!
How do you make fajitas with steak?
Making fajitas with steak is very easy. You don't need any fancy ingredients, but the steak should marinate overnight up to 2 days for the best flavor. The best marinade for steak fajitas is made with lime juice, garlic, onions, oil, salt and pepper - that's it. Now a days, people get fancy and rub the skirt steak in coffee and all kinds of spices or add soy sauce to the marinade. I admit that it's nice having a twist on fajitas, but to me, fajitas flavored with a traditional marinade are the absolute best.
After marinating, let the steak come to temperature for 30 minutes. Then, remove the steak from the marinade (reserving the onions) and pat dry. Rub oil on the steak and season liberally with salt and pepper. Grill to your preference. Cover the steak fatijas loosely with foil while you char the peppers and onions.
What is the best meat for steak fajitas?
Answer: skirt steak, but flank steak and flap meat can also be used. The muscles in a skirt steak are fibrous looking and run perpendicular to its length and it has more fat and connective tissue than flank steak, making it perfect for marinating. Flank steak is leaner and thicker than skirt steak finer muscles that run the length of the cut. Flap meat is similar to skirt steak in that it's muscles run perpendicular to it's length and it's muscles are also more fibrous. It, too, is perfect for marinades and is used to make great carne asada.
I totally cheated and bought salsa fresca (chunky salsa made with no sugar, oil or tomato paste) from the grocery store. I went to my local taco shop and purchased the guacamole because they make it in-house and I like it. I chopped up some cilantro, and mixed some of the salsa into the guacamole and then just served it with the meat.
Okay, salsa and guacamole are pretty easy to make, but I didn't feel like it and it saved me loads of time not doing it from scratch. I only had to concentrate on the fajitas and the charred veggies. For me, it was worth it and made dinner all the more enjoyable.
Steak Fajitas with Traditional Marinade are 4 net carbs per serving
Steak Fajitas with Traditional Marinade
Ingredients
- 1 ½ pounds skirt steak
Traditional Marinade
- 6 ounces onion
- ½ cup lime juice
- 4 cloves garlic, crushed
- â…“ cup olive oil
Charred Onions and Peppers
- 6 ounces red bell pepper
- 6 ounces green bell pepper
- onions from the marinade
- salt and pepper
Instructions
Steak Fajita Marinade:
- Roll 4 limes back-and-forth on the counter, pressing firmly, to make juicing easier. Cut and juice the limes. Peal and crush the garlic cloves, giving them a quick rough chop and put with the lime juice. Slice a medium onion into rings about ⅜ inch thick. Cut the skirt steak in half and place into a large zip-loc bag. Pour the lime juice and oil into the bag. Add onions and garlic to both sides of the bag and between the skirt steak. Seal the bag and mush things around so that the ingredients are fairly evenly distributed throughout. Put the bag into a glass dish to prevent leaks and turn the bag over every few hours. Best if marinated over night - two days. Let the fajita meat come to temperature for 30 minutes before cooking.
Preparation:
- Slice the bell peppers and place into a bowl large enough to accommodate them and the onions from the marinade, but not the crushed garlic. Pour a little oil over the onions and peppers and toss to coat.
Method:
- Preheat the grill to high. Remove the skirt steak from the fajita marinade and dry with paper towels or they won't brown on the grill. Rub a little oil on both sides and salt and pepper liberally. Grill the steak to your liking. If it is not as brown as you like, put it in a very hot iron skillet to brown. Let the meat rest 10-15 minutes before slicing.
Charred Onions & Peppers:
- While the fajitas rest, preheat an iron skillet until very hot. Add the onions in a single layer and let cook until browned and charred. Turn over with tongs and cook the other side. Remove to a serving plate and add the next round of vegetables, making sure not to crowd the pan. Continue until all of the vegetables are done. This process will produce a little bit of smoke.
Slice:
- Slice the steak straight down through the top, not at on the diagonal as for a flank steak, and serve with the charred peppers and onions, fresh salsa and guacamole. Serves 6.
Notes
Nutrition
Almost Zero Carb Wraps (Low Carb Tortillas)
Authentic Chicken Fajitas Recipe (low carb)
Traditional Chile Rellenos Recipe with Cheese and Chorizo (low carb)
Tracy
I'm curious what the yellow balls are in the photo of the fajitas with fixins. Looks like butter but didn't notice it mentioned. My husband and I are doing our grocery list now and going to try this.
Kim Hardesty
Hi Tracy. They are mini "cornbread" muffins. -Kim
LadyJ1225
This marinade is AMAZING! I was looking for something basic and simple and this fit the bill. Great flavor and very easy to throw together in a minute. I had some kind of sirloin steaks in the freezer that worked perfectly with the marinade. After marinating a day I cut the steak into thin strips and cooked in a skillet, then added the bell peppers and onions. Absolutely delicious! Will be making this many times in the future = )
Pat Dougherty
I'm not sure when you posted this, but it's the recipe I've been searching for for years! No soy sauce, no teriyaki... Let the meat speak for itself. As you might guess, I too grew up in Texas. I especially loved your mention of your dad's oil-drum grill. What a nostalgic image - everybody in TX had one back in the day. !Gracias!
Anne
This is a fabulous recipe. Love it
Ellen
These fajitas are AWESOME! Thank you Kim!
Kim
I'm glad you enjoyed the recipe, Ellen! -Kim
Russell Christoforetti
I lived in San Antonio in 1980 and loved the fajitas. You recipe worked perfectly. Everyone loved the fajitas. Thank you for sharing. 5 Stars
Kim
Hello Russell. San Antonio was a special place in the eighties. I'm pleased you and your family enjoyed the recipe. Thank you for coming back to comment and have a great week! -Kim
Chrissy from Boston
The marinade is amazing! I used flank steak and marinated for a day and a half. Served with guac, salsa and sour cream with zucchini chips on the side. The lime came through prominently, to my delight, but probably because I also used the lime zest in the marinade. This was a terrific cinco de mayo eve dinner!
Kim
I'm so glad you like the marinade, Chrissy. Beef fajitas is one of our favorite meals! Thanks for taking the time to leave such a nice comment. Enjoy your weekend. -Kim
Tracee
Kim...I'm a misplaced Texan. Born in Houston and raised in Austin. I left Austin 16 years ago and moved to PA which means I live above the Mason-Dixon Line. I met a boy in a bar is the short story. We adopted our daughter from China (Yueyang, Hunan) in Dec 2002. She was 6 months old and now is fixin to turn 14!!
My family is still in Austin and we travel back every few months to gorge on Mexican food and BBQ. I insist we drive to San Marcos to eat at Herbert's and any BBQ will do!
I can't get skirt steak here and flank is almost $13 a pound!
Lilly and I are considering moving back to Texas this summer. My husband, and Lilly's dad, passed away very unexpectedly on Dec 19th. We are doing okay and these things just take time.
I have started using sirloin steak for our fajitas and they "almost" as good as they are in Texas! We must be about the same edge?? I graduated HS in 1983.
Peace.
Kim
Hello, Tracee. It's funny how similar our lives are in some ways. I'm not sure you know, but my children were born in China, also. They are 11 and 7 now! It's crazy how fast they have grown.
I'm so sorry to hear about your husband. I don't have any eloquent words of comfort to give -- only my heart-felt and deepest sympathy to you and your daughter. I hope you find find comfort, support, friends, family and joy where ever it is you decide to make your home.
Yes, we are of a similar age. I graduated in 1987! Yikes! So there it is.... I am officially middle-aged in black and white! Lol.
Thanks for taking the time to leave a comment and sharing a piece of yourself. I'm sure the information you gave about selecting a more affordable cut of beef will be very helpful for some. Thank you so much. Have a wonderful week! -Kim
Pernille Bjerring
Made your fajitas recipe last Saturday - so good!!! Juicy, delicious and very popular with the family. Cheated on the wraps, though but next time I'll try your zucchini wraps:-) Thanks for the recipe!
Kim
Hi, Pernille. Great! I'm so glad you guys liked the recipe. I'll have to try those wraps you told me about. I'm for taking shortcuts when I'm busy! Have a great week. -Kim
Elaine Markley
I still use the parmesan or once I made them with asiago, which is really good. You could also make them with cheddar. And if you have a little bit extra time, pop your salted, grated zucchini into a preheated 200 degree oven for 30 minutes on a paper towel-lined baking sheet, and you won't have to worry about straining and squeezing it to get the excess moisture out!
Kim
All great ideas Elaine! Thanks for sharing. :)
Elaine Markley
Looks really good! I would serve these on your Zucchini Fritters, baked into tortillas, which have become my favorite tortillas!
Kim
Elaine, Do you see the tortillas peeking in the background in the pictures? I made the zucchini fritters into tortillas as you suggested subbing mozzarella cheese. They were really good. I am writing up a post as we speak. I am making sure to give you the credit for the masterful idea. Thank you for such a great idea and for commenting! Have a great day. -Kim