Layer chicken, quinoa, tomatoes, spinach, olives, garlic, and oregano in crockpot. Cook on low for 6-8 hours. Serve over fresh mixed greens.
Place chicken and Brussels sprouts in crockpot, pour balsamic vinegar and honey, add garlic and thyme. Cook on low for 4-6 hours.
Place chicken in crockpot, pour lime juice, add cilantro, garlic, and cumin. Cook on low for 4-6 hours. Serve in lettuce wraps.