Preheat and prep: Heat the oven to 425°F (220°C). Line two large sheet pans with parchment for easy cleanup.
Chop the veggies: Cut broccoli into florets, slice peppers into strips, cut onion into wedges, slice carrots into coins, and halve the zucchini lengthwise then into half-moons.
Season the veggies: Toss with 1.5–2 tbsp olive oil, Italian seasoning, garlic powder, salt, and pepper. Spread evenly on one sheet pan.
Keep space between pieces for better browning.
Season the chicken: Pat chicken dry. Mix smoked paprika, garlic powder, onion powder, oregano, cumin, salt, and pepper. Drizzle chicken with 1–2 tbsp olive oil and rub in the spice mix.
Arrange on pan: Place chicken on the second sheet pan.
For even cooking, use similar-sized pieces or pound thicker breasts to a uniform thickness.
Roast: Put both pans in the oven. Roast veggies for 18–22 minutes, tossing once halfway. Roast chicken for 16–22 minutes, depending on thickness, until internal temperature reaches 165°F (74°C).
Rest the chicken: Let the chicken rest 5 minutes, then slice against the grain.
This keeps it juicy.
Make the sauce: Whisk together your chosen sauce ingredients. Thin with water or lemon juice to a drizzleable consistency. Adjust salt and lemon to taste.
Assemble the plates: Add a base (quinoa, brown rice, or sweet potato) if using.
Top with roasted veggies and sliced chicken. Finish with lemon zest, a squeeze of lemon juice, fresh herbs, and a generous drizzle of sauce.
Adjust to taste: Add extra salt, pepper, chili flakes, or a splash of olive oil if needed. You’re aiming for bright, savory, and a little tangy.