If you’re craving a flavorful, sizzling meal that comes together in no time, these 15-minute beef fajitas are the perfect choice. Packed with tender shaved beef, crisp-tender veggies, and bold spices, this recipe brings all the flavors of your favorite Tex-Mex dish to your kitchen. Add some creamy avocado, tangy lime, and fresh cilantro, and you’ve got a restaurant-quality meal on your table in minutes!
If you love 15-minute meals check out my 15-minute Cheesy Pasta Shells and my 15-minute Tofu & Broccoli Spaghetti or my 15-Minute Baked Tilapia. In the mood for Mexican? You should definitely check out my Taco Bowl with a twist! Potato Taco Bowl!
15-Minute Beef Fajitas Video
Why You’ll Love This Recipe
Family-Friendly: A fun and interactive meal that everyone can assemble to their liking.
Quick and Easy: Ready in just 15 minutes, this recipe is perfect for busy weeknights.
Bursting with Flavor: A blend of spices, fresh lime, and garlic makes every bite irresistible.
Customizable: Add your favorite toppings or switch up the veggies to suit your taste.
Ingredients for 15-Minute Beef Fajitas
Full recipe, instructions and photos in the recipe card at the end of this post
- 1.5 lbs shaved beef
- 2 tablespoon butter
- 1 yellow pepper, sliced
- 1 orange pepper, sliced
- 1 white onion, sliced
- 4 cloves garlic, crushed
- ¼ teaspoon chili powder
- 1 tablespoon cumin
- 1 teaspoon onion powder
- 1 teaspoon garlic powder
- ½ teaspoon smoked paprika
- 1 teaspoon salt or salt to taste
- 1 lime, juiced
- Cilantro, chopped, for garnish
- 1 avocado, sliced
- Tortillas (flour or corn)
- Cotija cheese (optional
Instructions
Full recipe, instructions and photos in the recipe card at the end of this post
Prep the Veggies
- Slice the yellow pepper, orange pepper, and white onion into thin strips, or use pre-sliced fajita veggies from the grocery store.
Cook the Veggies
- Heat a skillet over medium heat and melt 1 tablespoon of butter.
- Add the sliced onions and cook for 2 minutes until softened.
- Add the peppers and 1 teaspoon of the seasoning mix (chili powder, cumin, onion powder, garlic powder, smoked paprika, and salt).
- Stir and cook for 3 minutes until the veggies are slightly softened but still crisp. Set aside and cover with aluminum foil if you prefer them more tender.
Cook the Beef
- In the same skillet, add a bit of oil and heat over medium-high heat.
- Add the crushed garlic and sauté for 30 seconds.
- Add the shaved beef, spreading it out in a single layer. Let it cook undisturbed for 2-3 minutes to develop color.
- Sprinkle the remaining seasoning over the beef and stir. Cook for another 3 minutes until the beef is fully cooked.
- Add 1 tablespoon of butter and the juice of 1 lime. Stir to coat the beef in the butter and lime mixture.
Heat the Tortillas
- Warm the tortillas in a dry skillet or microwave for a few seconds until soft and pliable.
Assemble the Fajitas
Top with sliced avocado, chopped cilantro, and a sprinkle of Cotija cheese if desired. Serve immediately and enjoy!
Fill each tortilla with the beef, peppers, and onions.
Tips for the Best Beef Fajitas
Don’t Overcrowd the Pan: Cook the beef in a single layer for a nice sear and better flavor.
Adjust the Veggie Texture: If you prefer softer veggies, cover them with aluminum foil and let them steam for a few extra minutes after cooking.
Use Fresh Lime: Freshly squeezed lime juice brightens up the flavors and is key to the perfect fajitas.
Customize Your Toppings: Add sour cream, pico de gallo, or jalapeños for extra flavor.
FAQ
Can I use a different cut of beef?
Yes! Thinly sliced skirt steak or flank steak works well if shaved beef isn’t available.
What other vegetables can I use?
You can add mushrooms, zucchini, or poblano peppers to the mix for variety.
Can I make this dish dairy-free?
Absolutely! Simply omit the butter and Cotija cheese. Use avocado oil for cooking instead.
How do I store leftovers?
Store the cooked beef and veggies in an airtight container in the fridge for up to 3 days. Reheat in a skillet or microwave before serving.
What tortillas work best?
Both flour and corn tortillas are great options. Choose your favorite or use low-carb tortillas for a lighter meal.
⭐️ Recipe
15-Minute Beef Fajitas
Ingredients
- 1.5 lbs shaved beef
- 2 tablespoon butter
- 1 yellow pepper sliced
- 1 orange pepper sliced
- 1 white onion sliced
- 4 cloves garlic crushed
- ¼ teaspoon chili powder
- 1 tablespoon cumin
- 1 teaspoon onion powder
- 1 teaspoon garlic powder
- ½ teaspoon smoked paprika
- 1 teaspoon salt or salt to taste
- 1 lime juiced
- Cilantro chopped, for garnish
- 1 avocado sliced
- Tortillas flour or corn
- Cotija cheese (optional
Instructions
Prep the Veggies
- Slice the yellow pepper, orange pepper, and white onion into thin strips, or use pre-sliced fajita veggies from the grocery store.1 yellow pepper, 1 orange pepper, 1 white onion
Cook the Veggies
- Heat a skillet over medium heat and add olive oil or melt 1 tablespoon of butter.
- Add the sliced onions and cook for 2 minutes until softened.1 white onion
- Add the peppers and 1 teaspoon of the seasoning mix (chili powder, cumin, onion powder, garlic powder, smoked paprika, and salt).¼ tsp chili powder, 1 tbsp cumin, 1 tsp onion powder, 1 tsp garlic powder, ½ tsp smoked paprika, 1 tsp salt or salt to taste
- Stir and cook for 3 minutes until the veggies are slightly softened but still crisp. Set aside and cover with aluminum foil if you prefer them more tender.
Cook the Beef
- In the same skillet, add a bit of oil and heat over medium-high heat.
- Add the crushed garlic and sauté for 30 seconds.4 cloves garlic
- Add the shaved beef, spreading it out in a single layer. Let it cook undisturbed for 2-3 minutes to develop color.1.5 lbs shaved beef
- Sprinkle the remaining seasoning over the beef and stir. Cook for another 3 minutes until the beef is fully cooked.
- Add 1 tablespoon of butter and the juice of 1 lime. Stir to coat the beef in the butter and lime mixture.
Heat the Tortillas
- Warm the tortillas in a dry skillet or microwave for a few seconds until soft and pliable.Tortillas
Assemble the Fajitas
- Top with sliced avocado, chopped cilantro, and a sprinkle of Cotija cheese if desired. Serve immediately and enjoy!1 lime, Cilantro, 1 avocado, Cotija cheese (optional
- Fill each tortilla with the beef, peppers, onions and avocados (and anything else you desire) and enjoy!
Maya E. says
I think a fajita veggie mix helps speed things up. Can't believe it's that simple!!
Susan Ryan says
I bought some lovely shaved beef and lovely peppers & a big white onion, but had no good Fajita recipe that I liked. So, today, with the luck of the algorithm search, I saw Lola's recipe and the word Easy. I have been fooled before, but not this time. I followed the steps, and Delicious. Thank you so much from an old lady who still likes cooking before my back gives out!
Lola Jay says
Hi Susan!
Haha aww I'm so glad!This email genuinely made me smile 🙂 It's an oldie but a goodie! I also plan to cook as long as my back will have it LOL!
Hope you had a great weekend!
Lola