Preheat your oven to 400°F (200°C) and line your sheet pan with parchment paper or a silicone mat.
In a large mixing bowl, combine the sliced chicken with a drizzle of olive oil, smoked paprika, cumin, salt, and pepper. Toss until everything is evenly coated, then spread the seasoned chicken on one side of the prepared sheet pan.
Add the sliced bell peppers to the same bowl or a separate one, toss with a little olive oil, and spread them out on the other side of the sheet pan.
Mix the honey with the juice and zest of the lime to create a glaze, then brush this mixture over the chicken and peppers using a basting brush to ensure even coating.
Slide the sheet pan into the oven and roast for about 15-20 minutes, until the chicken is cooked through, slightly charred at the edges, and the peppers are tender with some caramelized spots.
Carefully remove the sheet pan from the oven, then give the chicken and peppers a final gentle toss to evenly distribute the glaze and charred bits.
Serve the smoky fall chicken fajitas hot, with your favorite sides or wrapped in warm tortillas for a flavorful, vibrant meal.