Preheat your oven to 425°F (220°C). Line a baking sheet with parchment paper.
In a large bowl, toss the diced sweet potatoes with olive oil, paprika, garlic powder, salt, and pepper until evenly coated. Spread them out in a single layer on the prepared baking sheet.
Roast the sweet potatoes in the oven for 25-30 minutes, or until they are tender and slightly caramelized, stirring halfway through.
While the sweet potatoes are roasting, season the chicken breasts with salt and pepper. In a skillet over medium heat, cook the chicken for about 6-7 minutes per side, or until fully cooked and no longer pink in the center.
Once the chicken is cooked, remove it from the skillet and let it rest for a few minutes. Then, shred the chicken using two forks and mix it with the BBQ sauce in a bowl until well coated.
To assemble the bowls, divide the roasted sweet potatoes, BBQ chicken, corn, and black beans among four bowls. Top each bowl with diced avocado and chopped cilantro.
Serve with lime wedges on the side for an extra burst of flavor.