Marinate the chicken: In a bowl, whisk chipotles, olive oil, garlic, cumin, smoked paprika, oregano, salt, pepper, and lime juice.
Add chicken and coat well. Cover and refrigerate at least 20 minutes (up to overnight for deeper flavor).
Cook the rice: Rinse rice until the water runs clear. Add rice and broth to a pot.
Bring to a boil, then reduce heat, cover, and simmer until tender (about 15 minutes for white rice, 35–40 for brown). Rest 5 minutes, then fluff. Stir in lime juice, cilantro, and salt if needed.
Roast the veggies: Heat oven to 425°F (220°C).
Toss peppers, red onion, and corn with olive oil, chili powder, salt, and pepper. Spread on a sheet pan. Roast 15–18 minutes, tossing once, until lightly charred and tender.
Cook the chicken: Heat a large skillet over medium-high.
Add a drizzle of oil. Sear chicken 5–6 minutes per side, until browned and cooked through (165°F/74°C). Rest 5 minutes, then slice or chop.
Make the sauce: Stir yogurt, adobo sauce, lime juice, and a pinch of salt until smooth.
Adjust heat with more adobo if you like it spicier.
Assemble the bowls: Divide rice among 4–5 containers. Top with sliced chicken and roasted veggies. Add a spoonful of sauce.
Garnish with cilantro and a lime wedge. If adding avocado or lettuce, store them separately.
Cool and store: Let bowls cool slightly, then seal. Refrigerate promptly.