01 -
Combine chicken breasts with olive oil, lemon juice, oregano, salt, and pepper in a bowl. Mix thoroughly to coat, cover, and refrigerate for 30 minutes.
02 -
Rinse quinoa under cold water. Cook according to package instructions, usually simmering in double its volume of water until liquid is absorbed. Fluff with a fork and set aside.
03 -
Preheat grill to medium heat or oven to 200°C. Remove chicken from marinade and grill or bake until internal temperature reaches 75°C, about 8–10 minutes per side. Allow to rest for 5 minutes before slicing.
04 -
Dice cucumber, halve cherry tomatoes, and thinly slice red onion. Set aside.
05 -
In a bowl, mix Greek yogurt, lemon juice, chopped dill, salt, and pepper until well blended.
06 -
Divide quinoa among serving bowls. Top each with sliced chicken, cucumber, tomatoes, red onion, olives, and crumbled feta cheese. Serve yogurt sauce on the side.