Quick Skillet Chicken Fajitas (Under 20 Minutes)
Tex-Mex classic, one skillet, done before you finish second-guessing yourself.
It's 6 PM, you're wiped out, and you still need to feed people. Chicken fajitas are the answer. This version skips the marinade step and gets everything into hot tortillas in under 20 minutes by using thin-sliced chicken, a pre-mixed spice blend, and one very hot skillet. You'll get real char on the peppers, juicy chicken, and that satisfying sizzle without any real effort. Expect a little smoke from the high heat — open a window. Leftovers reheat decently but the tortillas are best fresh, so serve immediately.
Ingredients
- 1.5 lb boneless skinless chicken breast — sliced thin against the grain, about ¼-inch strips
- 1 unit red bell pepper — seeded and sliced into strips
- 1 unit green bell pepper — seeded and sliced into strips
- 1 unit yellow onion — halved and sliced into half-moons
- 2 tbsp neutral oil — vegetable or avocado oil — divided
- 1.5 tsp chili powder
- 1 tsp ground cumin
- 0.5 tsp garlic powder
- 0.5 tsp smoked paprika
- 0.75 tsp kosher salt
- 0.25 tsp black pepper
- 2 tbsp fresh lime juice — about 1 large lime
- 8 unit flour tortillas — 6-inch, warmed — use corn tortillas for gluten-free
- 0.5 cup sour cream — for serving; omit for dairy-free
- 0.5 cup fresh salsa or pico de gallo — store-bought is fine
Method
- 1 Combine chili powder, cumin, garlic powder, smoked paprika, salt, and black pepper in a small bowl. Toss the chicken strips with half the spice mix until evenly coated.
- 2 Heat a large cast-iron skillet or heavy skillet over high heat until very hot, about 2 minutes. Add 1 tablespoon of oil and swirl to coat.
- 3 Add the chicken strips in a single layer — work in two batches if needed to avoid crowding. Cook undisturbed for 2 minutes, then toss and cook another 1–2 minutes until cooked through with some char. Transfer to a plate.
- 4 Add the remaining 1 tablespoon of oil to the same skillet. Add the onion and bell peppers. Sprinkle with the remaining spice mix. Cook over high heat, stirring occasionally, for 3–4 minutes until softened and lightly charred.
- 5 Return the chicken to the skillet with the vegetables. Squeeze lime juice over everything and toss to combine. Cook 30 seconds more.
- 6 Warm tortillas directly over a gas burner for 15 seconds per side, or wrap in a damp paper towel and microwave for 30 seconds.
- 7 Serve the chicken and pepper mixture immediately in warm tortillas with sour cream and salsa.
Variations
- Vegetarian Swap — Replace chicken with 1 lb of portobello mushrooms sliced into strips, or use a 15 oz can of drained black beans added with the peppers. Same spice mix, same method.
- Even Faster — Use a 12 oz bag of pre-sliced frozen fajita vegetables (thawed and patted dry) and pre-cut chicken strips from the butcher counter — cuts prep to under 3 minutes.
- Spice Substitution — No chili powder? Use 1 tsp chipotle powder for a smokier, slightly hotter version, or 1 packet of store-bought fajita seasoning in place of all the individual spices.
Notes
The key to good fajitas in a skillet is high heat and not overcrowding the pan. If the chicken steams instead of searing, it won't have that char. Thin-sliced chicken cooks fast — don't walk away. You can buy pre-sliced fajita chicken strips at most grocery stores to shave off 3 minutes of prep.
Equipment that helps
- Large cast-iron skillet — Holds and distributes high heat evenly so the chicken and vegetables actually char instead of steam.
- Sharp chef's knife — Thin, even strips cook at the same rate — a dull knife makes this harder and slower.
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