1. Preheat the oven to 400°F and line a rimmed sheet pan with parchment paper.

2. Slice chicken breasts into ½-inch strips and slice bell peppers and onion into uniform pieces.

3. In a large bowl toss chicken garlic vegetables olive oil lime juice fajita seasoning salt and pepper until evenly coated.

4. Spread the mixture in a single layer on the prepared sheet pan to ensure even roasting.

5. Bake for 20–25 minutes, turning halfway, until chicken reaches 165°F and vegetables are lightly charred.

6. Remove from oven and squeeze fresh lime juice over the top then sprinkle with chopped cilantro.

7. Warm tortillas and serve fajita mixture immediately or cool before storing for meal prep.