01 - Preheat oven to 425°F. Line a large sheet pan with parchment paper or lightly grease it.
02 - In a large bowl, whisk together olive oil, lemon zest and juice, garlic, oregano, thyme, paprika, salt, and pepper. Add chicken breasts and toss to coat evenly. Let marinate while preparing vegetables.
03 - In a separate bowl, combine potatoes, carrots, bell peppers, red onion, and broccoli. Drizzle with olive oil, salt, and pepper; toss to coat.
04 - Arrange vegetables on the prepared sheet pan in a single layer. Nestle marinated chicken breasts among the vegetables.
05 - Roast in the oven for 30–35 minutes, or until the chicken is cooked through (internal temperature 165°F) and vegetables are tender and lightly browned.
06 - Remove from oven. Let rest 3 minutes, then garnish with chopped parsley and serve with lemon wedges.