This Sheet Pan Chicken Fajitas Recipe is one of the most satisfying of all our Easy Dinner Recipes! Done in just 25 minutes, it's everything you love about yummy Mexican food - tender strips of chicken, caramelized onions, soft poblanos and bell peppers, and a perfect blend of spices. By baking them in the oven, this recipe is extra fast and requires minimal cleanup, yet doesn't sacrifice any flavor!