Preheat your oven to 400°F (200°C).
In a mixing bowl, combine the chicken pieces, broccoli, red bell pepper, zucchini, and cherry tomatoes.
Drizzle the olive oil over the mixture and sprinkle the garlic powder, onion powder, paprika, salt, and pepper. Toss everything together until well coated.
Spread the mixture evenly on a large sheet pan. Ensure the ingredients are in a single layer for even cooking.
Roast in the preheated oven for 25-30 minutes, or until the chicken is cooked through and the vegetables are tender and slightly caramelized. Stir halfway through the cooking time for even roasting.
Once cooked, remove from the oven and let cool for a few minutes. Divide into meal prep containers and serve with cooked quinoa or brown rice if desired.
Store in the refrigerator for up to 5 days for easy reheating throughout the week.
To reheat, you can microwave or re-roast in the oven at 350°F (175°C) until warmed through.