Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper to prevent sticking.
Cut the chicken breast into uniform 1-inch pieces and dice the sweet potato into small 1/2-inch cubes to ensure they cook at the same rate.
Place the chicken, sweet potato cubes, broccoli florets, and diced red bell pepper onto the prepared baking sheet.
Drizzle the extra virgin olive oil over the chicken and vegetables, then sprinkle evenly with the turmeric, oregano, garlic powder, sea salt, and black pepper.
Use your hands or tongs to toss everything together until every piece is well-coated in the golden oil and herb mixture.
Spread the ingredients out into a single layer, making sure the pan isn't overcrowded so the vegetables roast and caramelize rather than steam.
Roast in the center of the oven for 20 to 25 minutes, tossing the mixture halfway through, until the chicken is cooked through and the sweet potatoes are tender.
Divide the roasted mixture into a bowl and serve immediately while hot for the best texture and flavor.