Make the marinade: In a bowl, combine lime zest, lime juice, cilantro, garlic, olive oil, honey, cumin, chili powder, salt, and pepper. Whisk until blended.
Prep the chicken: Pat the chicken dry.
If the breasts are thick, slice them horizontally to create thinner cutlets. This helps them cook quickly and stay tender.
Marinate: Add the chicken to a resealable bag or shallow dish. Pour in the marinade, turning to coat.
Marinate at least 20–30 minutes, or up to 4 hours in the fridge.
Cook the quinoa: Rinse the quinoa under cold water. Combine quinoa and broth (or water and salt) in a pot. Bring to a boil, reduce heat, cover, and simmer for 15 minutes.
Turn off heat and let stand, covered, 5 minutes. Fluff with a fork.
Cook the chicken: Heat a large nonstick skillet or grill pan over medium-high. Lightly oil the surface.
Cook chicken 4–6 minutes per side, until browned and the internal temperature reaches 165°F (74°C). Avoid overcooking.
Rest and slice: Transfer chicken to a plate and rest 5 minutes. Slice into strips or cubes.
Add the veggies: If using, sauté the bell pepper and corn in the same pan for 2–3 minutes with a pinch of salt, or keep them raw for crunch.
Toss red onion in fresh lime juice if you like a quick, bright pickle.
Assemble meal prep bowls: Divide quinoa among 4 containers. Top with chicken, veggies, and a sprinkle of fresh cilantro. Add lime wedges for extra brightness.
Taste and adjust: Finish with a light squeeze of lime and a pinch of salt as needed.
Small adjustments make a big difference.