I love fajitas because when done right, they are so flavorful! The trick is really having a delicious marinade! As it turns out you don’t really need a giant list of complex ingredients, which is awesome! Here’s how I make my marinade for steak fajitas!

What is best steak for fajitas?

The best steak is flank steak or skirt steak. This is because both these cuts of steak are good at soaking up the marinade, which is super awesome for this recipe.

Another thing is that they are also easy to slice thinly and against the grain which makes them more tender, and helps it cook faster.

Word of warning – I was very distracted when I was cutting my steak – and I did not follow my own advice and cut them ALONG the grain. It still came out tender, but just letting you know what’s the best way!

I bought our flank steak from our local grocery store – but if you can’t find any around your area, you can try online meat delivery services! Some of them are really good – For example, Crowd Cow – they ship to anywhere in the US other than Alaska and Hawaii sustainable and healthy meats/seafood!

What goes with steak fajitas?

Steak fajitas usually cooked with peppers and onions and so technically you already got your filling of meat and veggies and don’t require any sides, but the more food the merrier!

Some dishes that go great with steak fajitas include:

• Chips and salsa
• Cilantro Lime Rice
• Mexican Rice
• Refried Beans
• Black Beans
• Charro Beans
• Mexican Street Corn
• Guacamole (here’s one of my recipes – Easy Guacamole with Bacon, Tomato, Cilantro)
• Pico de Gallo

How to keep it Low Carb?

This recipe is 6g per serving (including the onions and bell peppers). To keep it low carb, normal tortillas won’t work, however, if you can find some keto tortillas, or make some keto tortillas, then that’s two options.

Another option is to serve with cauliflower rice! It’s super tasty and similar to my Southwest Chicken bowl.

You can also try using a lettuce wrap! You can use any type of lettuce but I recommend Boston bib lettuce and romaine hearts.

What to marinate steak in for fajitas?

The very basics are these following ingredients. For specific measurements, I explain in the ingredients section.

• Olive oil
• Minced garlic
• Lime Juice
• Chili Powder
• Ground Cumin
• Salt
• Pepper

How do you make steak fajitas?

First gather your ingredients:

• Marinade
  • 2 tablespoons olive oil
  • 2 cloves garlic, minced
  • 1 tablespoon lime juice
  • 1/2 teaspoon chili powder
  • 1 teaspoon ground cumin
  • Salt and pepper as desired
• 1 pounds flank steak, sliced in to 1/2 to 1 inch length
• 1 tbsp olive oil
• 2 bell peppers (green, yellow or red), deseeded and sliced
• 1/2 onion, sliced

Steak Fajitas Marinade

In a large bowl or ziplock bag, add flank steak, olive oil, garlic, lime juice, chili powder, cumin, salt and pepper. Mix well together and then set aside for at least 30 minutes. The longer you marinade this the tastier it will be.

Cooking the Steak Fajitas

Heat a cast iron or large skillet over medium high heat. Add bell peppers, onions, salt and pepper as desired, in to the skillet and cook until tender but not soft. The onions will be slightly translucent.

Remove from heat and set aside, and add steak to skillet. With a spatula or cooking utensil make sure to cook everything evenly on one side and then the other.

As soon as it browns on both sides, add the bell peppers and onions back in to the skillet and saute everything together.

Remove everything from heat and serve with tortillas, rice, or any other delicious sides you may want to serve it with!

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If you loved this recipe and are eating a keto diet, you’re going to love this round up of 70+ delicious keto mexican recipes I put together here!

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