Place the vinegar, basil, rosemary, pepper, garlic and salt in a bowl. Blend or mix and add the olive oil and mix again.
Cut the mushrooms into 6 to 8 pieces each. Mix with the dressing and set aside 5 to 10 minutes while the oven warms up.
Bake at 400°F for 10 to 12 minutes or until almost all the liquid that the mushrooms let out has dried and they are cooked.
Add the cooked brown rice to the mushroom baking pan, mix them and serve with turkey. Place it into a casserole dish or platter or stuff the turkey. Stuffing the larger cavity of the turkey behind the legs and around it; make sure the mix is cool before stuffing into the turkey.
Sprinkle with almonds if serving separately or mix them with the stuffing if serving it with the bird.