Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Dice the chicken breast, yellow potatoes, and red bell pepper into uniform bite-sized pieces, and break the broccoli into small florets.
Place the chicken, potatoes, and vegetables into a large mixing bowl to prepare for seasoning.
Drizzle the extra virgin olive oil over the ingredients and sprinkle with dried rosemary, dried thyme, garlic powder, sea salt, and black pepper.
Toss the mixture thoroughly with your hands or a large spoon until every piece is evenly coated in the oil and aromatic herbs.
Spread the mixture in a single layer across the prepared baking sheet, ensuring the pieces are not touching to allow for proper roasting.
Roast in the oven for 20 to 25 minutes, tossing the ingredients halfway through, until the chicken is cooked through and the potatoes are golden and tender.