Preheat the oven to 425 degrees F. Spray a baking dish or baking sheet with nonstick cooking spray.
Pound the chicken out to an even thickness and pat dry. Place the chicken on the prepared sheet pan.
In a medium bowl, toss the shallots, olives, and lemon wedges (plus any other veggies you want to use) with 2 Tablespoons of olive oil, garlic powder, ½ teaspoon of salt, and pepper. Spread the veggies and lemon around the chicken.
In the same bowl, combine feta cheese, remaining olive oil, lemon juice, minced garlic, oregano, thyme, remaining salt, and pepper. Spread the mixture onto the chicken breasts.
Roast for 25-35 minutes, checking for doneness with a meat thermometer. Spoon the olives, shallots, and their sauce over the chicken and serve!
Notes
Store in an airtight container in the refrigerator for up to 4 days. I highly recommend adding other veggies you love like cherry tomatoes, zucchini, mushrooms, and bell peppers!