Prepare Marinade: In a large bowl, whisk together olive oil, garlic, lemon juice, red wine vinegar, dried oregano, ground cumin, salt, and pepper until well combined.

Marinate Chicken: Place chicken thighs in a resealable bag and pour the marinade over them. Seal the bag tightly and refrigerate for at least 30 minutes.

Cook Chicken: Preheat your grill or skillet to medium-high heat. Remove chicken from the marinade and cook for 5-7 minutes per side until a meat thermometer reads 165°F.

Slice Chicken: Let the cooked chicken rest for about 5 minutes, then slice into thin strips.

Assemble Bowls: In serving bowls, add cooked rice as a base, then layer with sliced chicken, cherry tomatoes, cucumber, red onion, olives, and feta cheese.

Garnish & Serve: Drizzle with tzatziki sauce and sprinkle with parsley. Serve warm with pita bread.