Place chicken between two sheets of plastic wrap, and using a meat mallet, pound chicken flat until even thickness is achieved.
Mix up Greek Chicken Marinade according to directions
Put chicken in a container or zip top bag, and cover chicken with marinade.
Let marinade 4-8 hours for optimal results
Remove from marinade, and pat chicken dry.
In a large skillet, heat olive oil over medium heat
Place chicken into hot oil, and let it sit, do not move it, letting it cook for 5-7 minutes depending on thickness of chicken
Flip chicken ove and cook an additional 5-7 minutes or until chicken is cooked through and internal temperature is 165 degrees.
Remove from pan, garnish with lemon if desired and enjoy!