Sheet-Pan Sweet Potato Fajitas

Place a large rimmed baking sheet on middle oven rack; preheat to 475°F. Combine oil, chili powder, garlic powder and cumin in a large bowl and whisk to mix. Add sweet potatoes and toss to fully coat. Carefully spread the sweet potatoes in an even layer on the hot baking sheet, reserving any remaining oil and spices in the bowl. Bake until the sweet potatoes begin to brown on the bottom and are just fork-tender but not soft, about 8 minutes.

Meanwhile, add onion, poblano and bell pepper to the bowl with the reserved oil and spices; toss to coat. Move the sweet potatoes to one half of the baking sheet and add the onion mixture in an even layer to the other half. Bake until the sweet potatoes are tender and the peppers and onions are just tender, about 10 minutes. Switch oven to broil on high; broil until the peppers and sweet potatoes begin to char, 3 to 5 minutes. Season with salt. Divide the vegetable mixture among tortillas; top evenly with avocado, radishes, cilantro and queso fresco. Serve with lime wedges.