Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Dice the chicken breast, sweet potato, and red bell pepper into uniform bite-sized cubes to ensure even cooking.
Place the cubed chicken, sweet potatoes, bell pepper, and broccoli florets onto the prepared baking sheet.
Drizzle the extra virgin olive oil over the ingredients and sprinkle evenly with sea salt, black pepper, garlic powder, and smoked paprika.
Toss the mixture thoroughly with your hands or tongs until everything is well-coated, then spread into a single layer.
Roast in the oven for 20-25 minutes, or until the chicken is cooked through and the sweet potatoes are fork-tender and slightly caramelized.
Remove from the oven and drizzle with fresh lemon juice to brighten the flavors before serving in a large bowl.