Variation
Add a sliced jalapeño with the onions for extra heat.
Dinner · Main Course · Tex-Mex
Steak Fajitas With Charred Peppers And Onions
These steak fajitas feature tender strips of citrus-marinated beef seared alongside sweet, smoky charred peppers and onions.
Prep
20 min
Cook
15 min
Difficulty
Easy
Serves
4
Preparation
Get these tasks done before you start cooking.
Marinating the Beef
- 1
Combine Marinade
In a large bowl or zip-top bag, whisk together the olive oil, lime juice, minced garlic, cumin, paprika, chili powder, salt, and pepper.
Tip: Marinate for at least 30 minutes, but no more than 8 hours, as the lime juice can break down the meat texture.
- 2
Coat Steak
Add the steak strips to the marinade and toss until every piece is thoroughly coated. Let rest at room temperature while you prep the vegetables.
How to Make Steak Fajitas With Charred Peppers And Onions
Total time: 35 min · Yields 4 servings
- 1
Heat the Skillet
Place a large cast iron skillet over high heat. Add one tablespoon of neutral oil and wait until the oil begins to shimmer and smoke slightly.
- 2
Char the Vegetables
Add the sliced peppers and onions to the skillet. Sauté for 5 to 7 minutes, stirring occasionally, until the vegetables are softened and show dark, blistered char marks on the edges.
- 3
Remove Veggies
Transfer the charred vegetables to a plate and cover with foil to keep warm. Do not wipe out the skillet.
- 4
Sear the Steak
Work in batches to avoid crowding the pan. Add the steak strips in a single layer. Cook undisturbed for 2 minutes to develop a crust, then flip and cook for 1 to 2 more minutes until medium-rare.
- 5
Combine and Serve
Return the vegetables to the skillet with the steak. Toss for 30 seconds to combine and reheat everything. Remove from heat immediately to prevent overcooking the beef.
Chef's Tips
- Always slice the steak against the grain to ensure every bite is tender rather than chewy.
- Use a cast iron skillet for the best heat retention and authentic char.
- Ensure the steak is at room temperature before cooking to get a better sear.
What to Serve with Steak Fajitas With Charred Peppers And Onions
The garlic butter sauce is the star — pick sides that soak it up or balance the richness.
- Serve directly from the sizzling cast iron skillet for a restaurant feel.
- Offer bowls of guacamole and pico de gallo on the side.
- Provide warm flour or corn tortillas wrapped in a clean kitchen towel.
Recipe Variations
Once you've mastered the base recipe, try these popular twists.
Variation
Swap flank steak for top sirloin if you prefer a leaner cut.
Variation
Top with crumbled cotija cheese for a salty, tangy finish.
Storage & Reheating
Store leftover steak and vegetables in an airtight container in the refrigerator for up to 3 days. Reheat quickly in a hot pan to maintain the texture.
Further reading
Frequently asked questions
What is the best cut of meat for steak fajitas?
Flank steak and skirt steak are the traditional choices. Skirt steak is more flavorful but can be tougher, while flank steak is leaner and easier to slice neatly.
How do I make steak fajitas tender?
The secret is two-fold: use an acidic marinade (like lime juice) and always slice the meat against the grain, which breaks up the long muscle fibers.
Can I use a regular frying pan instead of cast iron?
Yes, but you may not get the same level of char. Use a stainless steel pan rather than non-stick, as non-stick pans should not be used over the extremely high heat required for fajitas.
Do I need to cook the steak and peppers together?
It is best to cook them separately. Steak cooks very quickly, while peppers need more time to soften and char. Combining them at the end ensures both are perfectly cooked.
Is the marinade necessary for steak fajitas?
While not strictly required, a marinade adds essential moisture and flavor depth that balances the smokiness of the char.
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