Cilantro Lime Chicken Marinade: in a small blender or food processor combine 1/2 cup fresh cilantro, 1/4 cup extra light olive oil, 1/4 cup fresh lime juice and 1/2 teaspoon kosher salt. Blend until combined. Place 6 boneless, skinless chicken thighs in a glass container or reusable silicone bag and pour marinade over top. Ensure chicken is fully coated. Let marinate for 20-30 minutes, while you prep the rest of the ingredients.
Cilantro Lime Yogurt Sauce: in a small blender or food processor add 3/4 cup plain Greek yogurt, 1/4 cup mayo, 1 tablespoon extra light olive oil, 2-4 tablespoons lime juice, zest of 1 lime, 1/4 cup fresh cilantro, 1/4 teaspoon kosher salt and 1/8 teaspoon ground black pepper. Blend until smooth. Taste and add any additional salt, lime or cilantro - as desired.
Prep Grill: Bring grill to medium-high heat (about 400℉) and ensure grill grates are clean.
Grill Chicken: Remove chicken from marinade, letting excess liquid drip off. Place chicken thighs directly on the grill grates and season with a little salt and pepper. Grill for 3-4 minutes per side (the bigger/thicker the thigh the longer you will need to cook it), flipping once (and season the other side once you flip with a little more salt and pepper). Remove from grill once the internal temperature has reached 165℉ (use a meat thermometer).
Rest Chicken: Let meat rest 5-10 minutes before serving. After they rest feel free to slice or dice up the chicken.
Build Bowl: Divide rice between bowls. Top with chicken, guacamole, Cilantro Lime Yogurt Sauce and a little freshly chopped cilantro. Squeeze some lime juice over top and serve immediately.
Notes
Chicken Breasts: you can definitely use chicken breast, if that is what you prefer - just adjust the cook time.