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Steak Fajitas

Easy Weeknight Steak Fajitas

The Crispy Chef
Tender strips of steak, sizzling peppers, and onions come together in one pan for the ultimate 25-minute weeknight dinner. These fajitas are bold, fun, and customizable — perfect for a family-style meal any night of the week.
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Course Main Course
Cuisine Tex-Mex
Servings 4 servings
Calories 450 kcal

Equipment

  • Large skillet or cast-iron pan
  • large bowl or resealable plastic bag
  • Cutting board and knife
  • Measuring cups and spoons

Ingredients
  

  • 1 1/2 lbs flank or skirt steak, thinly sliced against the grain
  • 1 large yellow onion, sliced into strips
  • 2 large bell peppers (red & green), sliced
  • 1 tbsp olive oil (for sautéing)
  • 2 tbsp olive oil (for marinade)
  • 2 tbsp lime juice (from 1 lime)
  • 2 cloves garlic, minced
  • 1 1/2 tsp chili powder
  • 1 tsp smoked paprika
  • 1 tsp ground cumin
  • 1/2 tsp garlic powder
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1/4 tsp cayenne pepper (optional)
  • 8-10 small flour or corn tortillas, warmed
  • Optional toppings: salsa, sour cream, guacamole, cheese, cilantro, lime wedges

Instructions
 

  • Slice steak against the grain into thin strips. In a bowl, mix marinade ingredients (2 tbsp olive oil, lime juice, garlic, chili powder, smoked paprika, cumin, garlic powder, salt, pepper, cayenne). Toss steak in marinade. Let sit at least 10 minutes (up to 2 hours).
  • Heat 1 tbsp olive oil in a large skillet over medium-high heat. Add onion and bell peppers. Cook 5–7 minutes until tender-crisp and slightly charred. Remove and set aside.
  • Increase heat to high. Add marinated steak in a single layer (cook in batches if needed). Sear 2–3 minutes per side until browned and cooked to desired doneness.
  • Return peppers and onions to the skillet. Toss with steak for 1 minute to combine and heat through.
  • Warm tortillas in the microwave (wrapped in a damp towel) or directly over a gas flame. Serve steak and veggies hot with tortillas and toppings.

Notes

For best results, slice steak against the grain for maximum tenderness. You can marinate up to 2 hours in advance for deeper flavor. This recipe works beautifully on a cast-iron skillet for restaurant-style sizzle.

Nutrition

Calories: 450kcalCarbohydrates: 20gProtein: 35gFat: 25gSaturated Fat: 7gPolyunsaturated Fat: 2gMonounsaturated Fat: 12gTrans Fat: 1gCholesterol: 95mgSodium: 890mgPotassium: 650mgFiber: 4gSugar: 6gVitamin A: 1800IUVitamin C: 90mgCalcium: 70mgIron: 4mg
Keyword easy fajitas, one-pan dinner, skillet fajitas, steak fajitas, weeknight Tex-Mex
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