Preheat and prep: Heat the oven to 425°F (220°C). Line two large sheet pans with parchment for easy cleanup.
Mix the marinade: In a bowl, whisk olive oil, lemon juice, garlic, smoked paprika, chili powder, oregano, cumin, salt, and pepper.
Prep the chicken: Slice chicken breasts in half horizontally to make thinner cutlets, or cut into 1-inch chunks for faster cooking.
Toss with half the marinade. Let sit 10–20 minutes while you prep veggies.
Chop the vegetables: Slice bell peppers and onion into strips. Cut zucchini into half-moons, broccoli into small florets, and leave cherry tomatoes whole.
Season the veggies: Add the remaining marinade to the vegetables and toss to coat.
Arrange on pans: Spread vegetables on one sheet pan in a single layer.
Place chicken on the other pan, spaced out so it roasts, not steams.
Roast: Bake both pans for 15–20 minutes, flipping chicken once. Chicken is done at 165°F (74°C) internal. Veggies should be tender with a little char on the edges.
Cook your base: While the oven works, cook brown rice or quinoa according to package directions.
For cauliflower rice, sauté in a nonstick skillet with a little oil, salt, and pepper for 5–7 minutes until just tender.
Make the yogurt sauce: Stir yogurt, lemon juice, garlic, salt, and pepper. Thin with a splash of water if you like it drizzly.
Assemble bowls: Divide rice or cauliflower rice into 4–5 meal prep containers. Top with roasted veggies and chicken.
Add a spoon of yogurt sauce, or pack it separately if reheating later.
Finish and cool: Let bowls cool uncovered for 15–20 minutes before sealing to prevent condensation.