After you've roasted the turkey, use all the flavorful vegetables and cooking juices in the roasting pan to make a rich-tasting gravy.
Place roasting pan on stove across two burners. Bring pan liquids to a boil over high heat; cook, stirring occasionally, until vegetables are very brown, 5 to 15 minutes.
Pour off (and discard) all but 1/4 cup fat from pan. Add wine; cook, stirring constantly, until syrupy, 1 to 2 minutes. Add flour, and cook, stirring, until browned, 1 to 2 minutes.
Add water, and bring to a boil. Cook, stirring occasionally, until gravy reaches desired consistency, 5 to 10 minutes.
Discard large solids, and strain gravy through a fine-mesh sieve. Season with salt and pepper. Keep warm or reheat just before serving.