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 tbsp butter
- 1 yellow pepper, sliced
- 1 orange pepper, sliced
- 1 white onion, sliced
- 4 cloves garlic, crushed
- 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
- 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 tsp 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.
!5-Minute Beef Fajitas
Ingredients
- 1.5 lbs shaved beef
- 2 tbsp butter
- 1 yellow pepper sliced
- 1 orange pepper sliced
- 1 white onion sliced
- 4 cloves garlic crushed
- 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
- 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.
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.
- Add the peppers and 1 tsp 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, onions and avocados (and anything else you desire) and enjoy!
I think a fajita veggie mix helps speed things up. Can’t believe it’s that simple!!