I work at a bar.
If it's an inn - at least two different beers to choose from, could be even more (blonde/dark/unfiltered/white). Not everyone has the same taste. Sold in glass and/or in bottles, depending on the concept.
Rum, gin, whisky, brandy, ale, mead. If it's a medieval concept - no pussy drinks/food, then steaks, everything that goes with beef and pork (chicken is for pussies. Turkey for ladies, maybe) that go along with potatoes, and all sorta veggies. Rabbit meat, boar meat, bear meat even, whatever goes.
Something non-alcoholic? Kvass, and nothing else, obviously (That too, should be at least 1%).