Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Peel and dice the sweet potato into small, uniform 1/2-inch cubes to ensure even roasting.
In a mixing bowl, toss the sweet potato cubes with olive oil, sea salt, black pepper, garlic powder, and smoked paprika until well coated.
Spread the sweet potatoes in a single layer on the prepared baking sheet and roast for 15 minutes.
While the potatoes roast, season the chicken breast with a pinch of salt and pepper, then sear in a pan or place on a separate tray in the oven until the internal temperature reaches 165°F.
Add the diced red bell pepper to the sweet potato tray, tossing them together, and roast for an additional 10 to 12 minutes until the potatoes are golden and crispy.
Remove the chicken from the heat and shred it into bite-sized pieces using two forks.
Combine the roasted sweet potatoes, peppers, and shredded chicken in a bowl, then gently fold in the baby kale while the ingredients are still hot to allow the greens to wilt slightly before serving.