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Sizzling beef fajitas with colorful bell peppers and onions in a cast iron skillet, perfect for a flavorful meal.

!5-Minute Beef Fajitas

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!
5 from 1 vote
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Course: Main Course
Cuisine: Mexican
Keyword: fajitas
Prep Time: 2 minutes
Cook Time: 13 minutes
Total Time: 15 minutes
Servings: 6
Calories: 292kcal
Author: Lola Jay

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
US Customary - Metric

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.
    Close-up of hands slicing a white onion on a wooden cutting board with a knife.

Cook the Veggies

  • Heat a skillet over medium heat and add olive oil or melt 1 tablespoon of butter.
    Pouring oil into a cast iron pan in a cozy kitchen setting.
  • Add the sliced onions and cook for 2 minutes until softened.
    Person adding sliced onions to a frying pan from a wooden board in a kitchen.
  • Add the peppers and 1 teaspoon of the seasoning mix (chili powder, cumin, onion powder, garlic powder, smoked paprika, and salt).
    Person seasoning sliced bell peppers and onions in a hot skillet, creating a delicious sauté in a kitchen.
  • 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.
    Woman cooking vegetables in a skillet in a cozy kitchen, adding color and flavor to her meal.

Cook the Beef

  • In the same skillet, add a bit of oil and heat over medium-high heat.
    Pouring oil into a cast iron pan in a cozy kitchen setting.
  • Add the crushed garlic and sauté for 30 seconds.
    Heating minced garlic in a black skillet, preparing for a flavorful dish.
  • Add the shaved beef, spreading it out in a single layer. Let it cook undisturbed for 2-3 minutes to develop color.
    Cooking thinly sliced shaved beef in a cast iron skillet with tongs.
  • Sprinkle the remaining seasoning over the beef and stir. Cook for another 3 minutes until the beef is fully cooked.
    Sizzling ground beef in a skillet with spices, perfect for beef fajitas.
  • Add 1 tablespoon of butter and the juice of 1 lime. Stir to coat the beef in the butter and lime mixture.
    Woman cooking in kitchen, adding butter and lime to a beef fajita dish.

Heat the Tortillas

  • Warm the tortillas in a dry skillet or microwave for a few seconds until soft and pliable.
    Woman cooking in kitchen, holding a tortilla beside a skillet with vegetables and meat.

Assemble the Fajitas

  • Top with sliced avocado, chopped cilantro, and a sprinkle of Cotija cheese if desired. Serve immediately and enjoy!
    Cast iron skillet with seasoned sliced beef, sautéed bell peppers, and avocado slices.
  • Fill each tortilla with the beef, peppers, onions and avocados (and anything else you desire) and enjoy!
    Person preparing beef fajita with bell peppers and avocado in a skillet.

Video

Nutrition

Calories: 292kcal | Carbohydrates: 10g | Protein: 26g | Fat: 18g | Saturated Fat: 6g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 81mg | Sodium: 113mg | Potassium: 657mg | Fiber: 4g | Sugar: 2g | Vitamin A: 961IU | Vitamin C: 71mg | Calcium: 39mg | Iron: 3mg