Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper.
Dice the sweet potato into 1/2-inch cubes and chop the red bell pepper into bite-sized pieces.
Mince the garlic cloves and cut the chicken breast into 1-inch chunks to ensure even roasting.
In a large mixing bowl, combine the chicken, sweet potato cubes, broccoli florets, and bell peppers.
Drizzle with extra virgin olive oil and sprinkle with the minced garlic, rosemary, thyme, sea salt, and black pepper.
Toss the ingredients thoroughly until everything is evenly coated in oil and seasonings.
Spread the mixture in a single layer on the prepared baking sheet, ensuring the pieces are not overcrowded.
Roast for 22 to 25 minutes, tossing halfway through, until the chicken is cooked through and the sweet potatoes are tender and golden.