Preheat and Prep: Heat the oven to 425°F (220°C). Line two baking sheets with parchment. Rinse rice or quinoa until water runs clear.
Pat chicken dry.
Start the Grain: Cook brown rice or quinoa according to package instructions. For extra flavor, add a pinch of salt and a squeeze of lemon to the water. Fluff when done and let cool slightly.
Season the Chicken: In a large bowl, toss chicken with 1.5 tbsp olive oil, 1 tsp salt, pepper, garlic powder, paprika, oregano, and cumin.
Spread evenly on one baking sheet.
Roast the Veggies: Toss broccoli, bell peppers, zucchini, red onion, and carrots with 1.5 tbsp olive oil and 1 tsp salt. Spread on the second sheet in a single layer.
Bake: Roast chicken for 18–22 minutes, or until internal temperature hits 165°F (74°C). Roast veggies 20–25 minutes, tossing once halfway, until edges are lightly browned.
Make a Quick Sauce: In a jar, shake soy sauce, honey, vinegar, lemon zest, and lemon juice.
For a creamy option, stir Greek yogurt with a spoon of hummus, a pinch of salt, and a squeeze of lemon.
Cool and Chop: Let chicken rest 5 minutes, then slice or cube. Keep a few pieces larger for kids who prefer basic plates.
Assemble Base Boxes: Divide cooked grain and roasted veggies into 8–10 meal prep containers. Add 4–6 oz chicken to each.
Keep sauces in small lidded cups.
Prep Fresh Add-Ins: Halve cherry tomatoes. Slice cucumber. Portion greens into zip-top bags or a large container lined with a paper towel to absorb moisture.
Plan the Mix-and-Match Meals: Bowl Night: Grain + chicken + roasted veggies + soy-honey sauce.
Add a handful of greens to warm bowls right before eating.
Wrap Night: Warm tortilla, layer hummus, chicken, peppers, cucumber, and spinach. Add yogurt-lemon sauce.
Stir-Fry Night: Sauté a portion of chicken and veggies with a splash of soy sauce and a drizzle of sesame oil. Serve over quinoa.
Salad Night: Mix greens, tomatoes, cucumber, warm chicken, and roasted broccoli.
Dress with lemony yogurt or your favorite vinaigrette.
Kid Plate: Keep it simple: chicken pieces, carrots, rice, and a little cheese or hummus.