Marinate the Chicken: Combine olive oil, lemon juice, minced garlic, oregano, salt, and pepper in a bowl. Add the chicken breasts, ensuring they are well-coated in the marinade. Let them sit for at least 30 minutes or overnight in the refrigerator for maximum flavor.
Prepare the Tzatziki Sauce: While the chicken marinates, grate the cucumber and squeeze out excess moisture using a clean towel. In a mixing bowl, combine Greek yogurt, grated cucumber, fresh dill or mint, salt, and pepper until smooth.
Cook the Couscous: Bring water to a boil in a saucepan and add couscous along with a pinch of salt. Remove from heat once boiling and cover; let it sit for about 5 minutes until fluffy.
Grill or Bake the Chicken: Preheat your grill or oven to medium-high heat while your couscous steams. Cook the marinated chicken for about 6-7 minutes per side on the grill or bake at 400°F (200°C) until cooked through.
Serve It Up: Once everything is ready, slice the chicken into strips and serve over a bed of fluffy couscous topped with generous dollops of tzatziki sauce. Garnish with additional herbs if desired.
Enjoy!: Relish every bite of your homemade Greek Chicken with Tzatziki and Couscous—an easy yet impressive dish perfect for any occasion!