To a large mixing bowl add olive oil and Greek spice seasonings. Whisk to mix well.

Place chicken breasts in bowl, turning to coat fully.

Place bowl in the refrigerator to marinate for 10 to 20 minutes.

Place prepared breasts on a hot grill. Cook for 3 to 4 minutes on each side until chicken is done to an internal temperature of at least 165°F.. Do not overcook.

Alternately, preheat the over to 350°F. Place breasts in an oven safe dish and bake for about 30 minutes until chicken is done to an internal temperature of at least 165°F.

This can be done in advance. Allow to cool and then store in a tightly sealed container, in the refrigerator, until ready to use, up to 3 days.