Party for around 20 people
When do you want to do this? Weekend? weekday? do you just want food or more of a loungey experience with good food?
My thoughts would be to try Laide on Adelaide @ Jarvis.. they are do 3 courses for $25 and you can choose anything on their menu. It is a cool place.. even Mayor Miller thinks so, he partied there on Halloween! ( http://live.canoe.ca/Photos/Life/FoodDrink/2006/11/02/2209229.html )
Menu is on their website ( http://Laide.ca/menu.asp )