Steak Fajitas
A simple, satisfying favorite.
Why You'll Love This Recipe
- Restaurant-style sizzle at home.
- 30-minute dinner.
- Customizable build-your-own setup.
- High-protein and naturally low-carb (skip tortillas).
- Great for entertaining.
Ingredient Notes
- Skirt steak is the traditional fajita cut — flavorful and tender when cut thin against the grain.
- Lime juice in the marinade tenderizes and brightens. Don't use bottled.
- A mix of bell pepper colors looks great and tastes balanced.
Ingredient Substitutions
- Flank steak (still slice against the grain) or sirloin work well.
- Chicken thighs (cook to 165°F) for the same flavors.
- Portobello mushrooms + extra peppers for vegetarian.
Equipment Needed
- Large cast-iron skillet or grill pan
- Mixing bowl or zip bag
- Tongs
- Sharp knife
- Cutting board
- Instant-read thermometer
- Foil
Prep Tips
- Marinate in the morning for a fast evening cook.
- Slice peppers the same thickness as your steak slices for a unified look.
Instructions
- 1
Gather and prep: 1 lb ground beef, 1 medium bell pepper, sliced, 1 medium onion, diced, 8 small flour tortillas, 1 tsp cumin, 1 chili powder, 1 lime (for juice), 1 tbsp olive oil. dice the onion, and chop the vegetables into even pieces before you start cooking.
- 2
Slice steak, marinate with spices and lime.
- 3
Sear hot; remove. Pull beef at 130°F for medium-rare or 140°F for medium; rest 5 minutes, then slice against the grain.
- 4
Char peppers and onion.
- 5
Serve in tortillas.
Artsi Pro Tips
- Slice across the grain — skirt and flank are tough if cut with the grain.
- Cast iron + high heat = restaurant char. A regular nonstick won't get hot enough.
- Resting the steak 5 minutes before slicing keeps every drop of juice in the meat.
Common Mistakes
- Slicing with the grain, leading to chewy meat.
- Skipping the rest, releasing all the juice.
- Marinating past 8 hours, which makes the meat mushy.
Storage
Refrigerate steak and vegetables (separately) up to 4 days.
Reheating
Reheat steak in a hot skillet 60 seconds per side, or microwave at 50% power. Vegetables reheat well in the skillet too.
Recipe Tags
Nutritional values are approximate and may vary depending on ingredients used.