In a mixing bowl, combine olive oil, lemon juice, garlic, oregano, salt, and pepper. Mix everything well until fully combined. This marinade is the key to infusing the chicken with bold, fresh flavor.
Place the chicken breasts into the marinade and coat them evenly. Let them sit for at least 15–20 minutes, or longer if you have time. This step helps tenderize the chicken and enhances its taste.
Transfer the marinated chicken into a baking dish in a single layer. Pour any leftover marinade over the top for extra flavor. This ensures the chicken stays moist during baking.
Scatter cherry tomatoes around the chicken and sprinkle crumbled feta cheese on top. The tomatoes will soften and release juices, while feta adds a creamy, salty finish.
Place the dish in a preheated oven at 400°F (200°C) and bake for 25–30 minutes. Cook until the chicken is fully done and slightly golden on top. The aroma at this stage is amazing.
Remove from the oven and sprinkle fresh parsley over the top. Let it rest for a few minutes before serving. This final touch adds freshness and color to the dish.