Preheat your oven to 400 degrees. Mist a 9x13 dish with non-stick spray and place your chicken breasts so they are not overlapping. Set aside.
Cook the garlic in the olive oil in a medium sized skillet until just warm. Remove from the heat and whisk in the stock, lemon juice, oregano, thyme, and 1/2 teaspoon salt. Pour over your chicken. Sprinkle with the remaining salt and pepper and cover with the sliced lemon.
Bake 30 minutes or until the chicken reaches an internal temperature of 165° fahrenheit