Place turkey breasts in a roasting pan and baste with oil/herb mixture.
Bake at 350° for 10 minutes, basting when necessary.
Remove turkey from oven, turn over and repeat procedure for
another 10 minutes or until done, depending on thickness
In a skillet, sauté onion and celery over medium heat
until onion is limp and transparent.
Add mushrooms, stir and sauté for a few minutes, add wine and cook for
5 minutes longer.
Top each turkey fillet with the mushroom mixture.