Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper.
Cut the chicken breast and the peeled sweet potato into uniform 1-inch cubes to ensure even cooking.
Place the chicken cubes, sweet potato cubes, and broccoli florets onto the prepared baking sheet.
Drizzle the extra virgin olive oil over the ingredients, then sprinkle with sea salt, black pepper, garlic powder, dried oregano, and smoked paprika.
Use your hands or a spatula to toss everything together until the chicken and vegetables are thoroughly and evenly coated in oil and spices.
Spread the mixture out into a single layer, ensuring there is space between the pieces for optimal roasting.
Bake for 20 to 25 minutes, flipping the ingredients halfway through, until the chicken is cooked through and the sweet potatoes are tender and browned.