Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
In a large bowl, toss the broccoli florets, red bell pepper, and zucchini slices with half of the extra virgin olive oil, sea salt, and black pepper.
Spread the vegetables in a single layer on the prepared baking sheet and roast for 18-20 minutes until tender and slightly charred at the edges.
While the vegetables roast, season the chicken breast evenly on both sides with garlic powder and smoked paprika.
Heat the remaining olive oil in a medium skillet over medium-high heat.
Place the chicken in the skillet and sear for 6-7 minutes per side, or until the exterior is golden brown and the internal temperature reaches 165°F.
Remove the chicken from the pan and let it rest on a cutting board for 5 minutes to lock in the juices.
Once the vegetables are finished roasting, remove them from the oven and immediately toss them with the fresh lemon zest and lemon juice.
Slice the chicken and serve it alongside the zesty roasted vegetables for a clean, nutrient-dense meal.