Prep the base (Meal 1): Preheat oven to 425°F (220°C). Line two sheet pans with parchment for easy cleanup.
Season the chicken: In a bowl, toss chicken with 1 tablespoon olive oil, 3/4 teaspoon salt, 1/2 teaspoon pepper, smoked paprika, garlic powder, and oregano.
Spread on one pan.
Roast the vegetables: On the second pan, toss broccoli, peppers, onion, and sweet potatoes with 2 tablespoons olive oil, 3/4 teaspoon salt, and 1/2 teaspoon pepper. Spread in a single layer.
Roast: Bake both pans for 20–25 minutes, flipping veggies once and turning chicken halfway, until chicken is cooked through (165°F/74°C) and veggies are tender with charred edges.
Serve Meal 1: Plate chicken and veggies over cooked grains. Squeeze lemon if you like.
Set aside 2 cups chicken and 2 cups roasted veggies for Meals 2 and 3. Store the rest for lunches.
Make Meal 2 (Tacos): Warm tortillas. Chop leftover chicken and veggies into bite-size pieces.
Fill tortillas with the mixture. Top with salsa, yogurt or sour cream, avocado, cilantro, and a squeeze of lime. Add hot sauce if you want heat.
Make Meal 3 (Soup): Heat olive oil in a pot over medium.
Sauté garlic 30 seconds until fragrant. Add broth and Italian seasoning; bring to a simmer. Stir in chopped leftover chicken, veggies, and grains.
Simmer 5–8 minutes. Taste and adjust salt and pepper. Finish with parsley or green onions.