
These skirt steak sheet pan fajitas are hands down the easiest way to make fajitas at home! Heat two large sheet pans under a broiler, then add seasoned fajita veggies and sliced skirt steak and listen to the sizzle! They cook quickly, require no stirring, and are infinitely adaptable! A weeknight dinner staple! Gluten-free, dairy-free.
Make the fajita spice blend. Combine 3 tsp chili powder, 2 tsp cumin, 2 tsp garlic powder, 2 tsp Kosher salt, 1 tsp paprika, and ¼ tsp cayenne pepper in a small bowl, then stir to combine.
Preheat the broiler. Place an oven rack as close to the broiler as possible, then turn the broiler to high. Place a rimmed baking sheet on the rack to preheat for about 5 minutes.
Cook the veggies. Place sliced bell peppers, poblano, and onions in a large mixing bowl. Drizzle with 2 Tbsp olive oil (or neutral oil), then toss with about 2 tablespoons of the spice mixture. Carefully remove the sheet pan from the oven, then pour the seasoned veggies on top. Use tongs to quickly spread into a thin, even layer. Cook under the broiler until charred and softened, 5 minutes. Remove and set aside.
Season the steak. Immediately place a second rimmed baking sheet under the broiler. Place sliced steak in a large bowl, then toss with remaining 2 Tbsp oil and 2-3 Tbsp of the spice rub. The more you add, the spicier it will be.
Cook the steak. Carefully remove the preheated baking sheet and pour the steak on top. Again, spread into a thin, even layer, then cook for 5 minutes under the broiler. No tossing required!
Serve immediately. family-style. Combine both the veggies and the steak on one sheet pan. Serve with all your favorite fajita toppings in warm flour tortillas with fresh cilantro and lime wedges.