Preheat the oven to 400 degrees F (200 degrees C).
Toss chicken, potatoes, bell peppers, onion, and garlic in a large bowl with olive oil. Spread onto a large sheet pan or jelly roll pan in a single layer. Squeeze lemon wedges over the top, then place the spent wedges on the sheet pan. Sprinkle oregano over everything. Season with salt and pepper. Add Kalamata olives.
Bake in the preheated oven until potatoes are fork-tender and chicken breasts are no longer pink in the center and juices run clear, about 25 minutes.
Source: Read Full Article