Creating Greek Sheet Pan Chicken is straightforward if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 425°F (220°C).
2. Prepare Marinade: In a small bowl, whisk together the olive oil, lemon juice, minced garlic, oregano, salt, and black pepper.
3. Marinate Chicken: Place the chicken thighs in a large bowl or zip-top bag. Pour half of the marinade over the chicken, ensuring it’s well coated. Let it marinate for at least 15 minutes (or up to overnight in the refrigerator).
4. Prepare Vegetables: On a large sheet pan, arrange the cherry tomatoes, red onion, bell pepper, and zucchini. Drizzle with the remaining marinade and toss to coat.
5. Add Chicken: Remove the chicken from the marinade and place it skin-side up on the sheet pan among the vegetables.
6. Bake: Roast in the preheated oven for 35-40 minutes, or until the chicken is cooked through and the skin is crispy. The internal temperature should reach 165°F (75°C).
7. Add Feta: In the last 5 minutes of baking, sprinkle the crumbled feta cheese over the chicken and vegetables, allowing it to soften and melt slightly.
8. Garnish: Remove the sheet pan from the oven and let it rest for a few minutes. Garnish with fresh parsley before serving.

These steps will guide you in creating this incredible dish effortlessly.