Meats: Beef, pork, mutton, venison, rabbit, chicken, duck, goose, partridge, squirrel, goat, moose, elk, woodchuck, wisent/bison, pheasent, beaver.
Fish: Cod, salmon, flounder, herring, sardines, trout.
Cheeses of all sorts.
Vegetables: parsnips, carrots, onions, beets, beans, peas, mushrooms. (in less historical based campaigns or those based on Middle-Earth you can include potatos, squash and corn)
Fruits: Apples, pears, cherries, apricots, grapes/raisins, plums/prunes.
Not all would have all of the above. Just a list of different things different inns might serve.
hunter1828