Preheat oven to 450°F and set your oven rack to the middle of the oven. Set aside a large baking sheet.
Scatter potatoes and tomatoes across the baking sheet.
Rub the chicken thoroughly with 1 tbsp oil and add to the middle an inch or so apart.
Sprinkle minced garlic, oregano and thyme across pan. Add salt and pepper to taste.
Drizzle the remaining 1 tbsp olive oil across evenly. Toss to mix well.
Bake for 15-22 minutes depending on the size of your chicken breasts, adding the green beans halfway through.
Several minutes before finishing, check the internal temperature using a quick-read thermometer. The chicken is done when it reads 160°F / 71°C.
Let the chicken rest in the pan for 5 minutes before serving, ideally covered with aluminum foil.
Garnish with optional parsley. Serve and enjoy!