Preheat oven to 425° F. Line a rimmed baking sheet with parchment paper.
In a small bowl, stir together the olive oil, lemon zest, garlic, oregano, salt and pepper.
3 tablespoons olive oil, zest of 1 lemon, 2 cloves garlic, 1 teaspoon dried oregano, ½ teaspoon salt, ¼ teaspoon black pepper
Put the veggies in a large mixing bowl: mushrooms, zucchini, bell peppers and red onion. Spoon half of the olive oil/seasoning mixture over the veggies and toss to coat.
8 ounces cremini mushrooms, 1 medium zucchini, 1 red bell pepper, 1 yellow bell pepper, 1 small red onion
Place the chicken thighs on the baking sheet. Spoon the remaining seasoning mixture over the chicken. Add the vegetables to the pan around the chicken.
1.25 pounds boneless skinless chicken thighs
Bake for 20 minutes. Then remove the pan from the oven and stir the vegetables a bit. Scatter the whole cherry tomatoes, kalamata olives and feta around the baking sheet and bake for 5-10 minutes more, until chicken is cooked through to at least 165° F. Serve.
¾ cup cherry tomatoes, ½ cup pitted kalamata olives, 2 ounces feta cheese