Check out my roasted garlic mashed potatoes out of the box from Betty Crocker. It tasted really good using the step by step cooking direction from the back of the box. Instead of regular milk I used evaporated milk for extra taste.
The gravy is all home made. Using the turkey drippings, brown 2 tablespoon cornstarch till it turned golden brown. Add 1 can chicken stock and 1 can water. Bring to boil in medium heat while constantly stirring. Season with ground pepper and salt to taste. Drain gravy and serve.