Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Chop the broccoli, red bell pepper, and zucchini into uniform bite-sized pieces.
In a large bowl, toss the vegetables with 0.5 tbsp of olive oil and half of the sea salt, black pepper, and dried oregano.
Spread the vegetables in a single layer on the prepared baking sheet and roast for 18-20 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 smoked paprika.
Heat the remaining 0.5 tbsp of olive oil in a medium skillet over medium-high heat.
Place the chicken in the skillet and sear for 5-7 minutes per side until the exterior is golden brown and the internal temperature reaches 165°F.
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.