Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Place the broccoli florets, sliced carrots, and bell pepper strips on the baking sheet.
Drizzle the vegetables with half of the olive oil and season with half of the salt and pepper.
Toss the vegetables to coat evenly and roast in the oven for 18 to 20 minutes until tender and slightly charred.
While the vegetables roast, season the chicken breast on both sides with the remaining salt, pepper, garlic powder, and dried oregano.
Heat the remaining olive oil in a medium skillet over medium-high heat.
Place the chicken in the skillet and sear for 6 to 7 minutes per side, or until the internal temperature reaches 165°F and the exterior is golden brown.
Remove the chicken from the pan and let it rest for 3 minutes before slicing.
Serve the sliced chicken alongside the roasted vegetable medley for a clean and balanced meal.