Follow these easy steps to create delicious Sheet Pan Steak Fajitas:

1. Marinate the Steak: In a large bowl, combine the olive oil, lime juice, chili powder, cumin, smoked paprika, garlic powder, onion powder, salt, and black pepper. Add the sliced steak and toss to coat. Let it marinate for at least 30 minutes.

2. Preheat the Oven: Preheat your oven to 400°F (200°C) to prepare for roasting.

3. Prepare the Vegetables: In a separate bowl, toss the sliced bell peppers and onion with a drizzle of olive oil and a pinch of salt. Stir until evenly coated.

4. Arrange on a Sheet Pan: Spread the marinated steak and vegetable mixture evenly on a large sheet pan.

5. Roast in the Oven: Bake in the preheated oven for 25-30 minutes, stirring halfway through to ensure even cooking. The steak should reach your desired doneness, and the vegetables should be tender.

6. Warm the Tortillas: While the fajitas are roasting, warm the tortillas in a dry skillet or microwave until softened.

7. Serve: Once cooked, remove the sheet pan from the oven. Toss everything together gently and adjust the seasoning if needed.

8. Garnish: Serve the fajitas with fresh cilantro, lime wedges, and any additional toppings you desire.