Grilled Cilantro-Lime Chicken with Avocado Salsa

• Place chicken on a cutting board, cover with a sheet of plastic wrap and pound thicker parts of chicken to an even thickness. Transfer chicken to a gallon size resealable plastic bag.
• In a small mixing bowl whisk together lime zest, lime juice, olive oil, honey, cilantro, 3 cloves minced garlic and season with 1 tsp salt and 1/2 tsp pepper. Pour marinade mixture over chicken in bag. Seal bag while pressing air out, then rub marinade over chicken. Allow to rest in refrigerator 2 - 4 hours (rotating bag to opposite side and moving chicken around halfway through if possible to ensure it's evenly marinating).
• Preheat a grill over medium-high heat (to about 425 - 450 degrees). Brush grill grates lightly with oil then grill chicken until center registers 160 - 165 degrees on an instant read thermometer, about 4 minutes per side. Remove and let rest 5 minutes.
• Meanwhile, in a medium mixing bowl toss together avocado, tomato, onion, garlic and lime and season with salt and pepper to taste. Spoon a generous amount over chicken and sprinkle with chopped cilantro. Serve warm.