"Game of Thrones" has an official cookbook: "A Feast of Ice & Fire."
Breakfast - "Breakfast at Winterfell"
Lunch - "Beef & Barley Stew"
Bread and salt
Snack - Dothraki Blood Pie
Dinner - Honeyed Chicken
Salad - Greens Dressed with Apples and Pine Nuts
Dessert - Strawberries and Sweetgrass
Booze is important in any culture, even one that's fictional. That holds true for Westeros, and Inn at the Crossroads has spun off a sister blog, Game of Brews, that's entirely dedicated to brewing in the Westerosi fashion.