Creating 30 Minute Sheet Pan Chicken Fajitas is simple when you follow these easy steps:

1. Preheat Oven: Preheat your oven to 400°F (200°C).
2. Prepare Ingredients: In a large bowl, combine sliced chicken, bell peppers, and onion.
3. Season: Drizzle olive oil over the mixture. Add fajita seasoning, salt, and pepper. Toss everything together until evenly coated.
4. Arrange on Pan: Spread the chicken and vegetable mixture in a single layer on a large baking sheet.
5. Bake: Place the baking sheet in the preheated oven and bake for 20 minutes, or until the chicken is cooked through and vegetables are tender.
6. Warm Tortillas: While the fajitas are baking, warm the tortillas in a dry skillet over medium heat for about 1 minute on each side or wrap them in foil and place them in the oven for the last 5 minutes of cooking.
7. Serve: Remove the sheet pan from the oven and let it cool for a minute. Serve the fajitas with warm tortillas and your choice of optional toppings.

By following these straightforward steps, you will have a delicious meal ready in no time!