I think a hot dog bar is super creative (although I doubt it'll be all that inexpensive once all the clever toppings are bought!) and lots of fun. People who don't want a hot dog can fill their bun with chili and onions, roasted veggies or whatever. I doubt that the hot dogs are actually mandatory! If the OP buys a sleeve of those paper "boats" like you get at ball parks, that would up the nostalgia factor, too, making it even more festive.
Here's a blog post outlining what one family did - I'd love to go to a party that like! (also: here is a link to a caterer's page outlining a hot dog bar, along with the list of their very fun toppings.)
As for the rest, when it comes to hospitality I figure that if a prospective guest cannot graciously accept what is offered in the spirit in which it is presented then he or she ought to rethink accepting the invitation and maybe spend some time pondering why the presence of hot dogs at an event outweighed the opportunity to spend time with friends in celebration.
Here's a blog post outlining what one family did - I'd love to go to a party that like! (also: here is a link to a caterer's page outlining a hot dog bar, along with the list of their very fun toppings.)
As for the rest, when it comes to hospitality I figure that if a prospective guest cannot graciously accept what is offered in the spirit in which it is presented then he or she ought to rethink accepting the invitation and maybe spend some time pondering why the presence of hot dogs at an event outweighed the opportunity to spend time with friends in celebration.
), but they have yet to leave a party hungry. It would never occur to complain about a host who chose to serve hot dogs, even if asked. I don't expect hosts to cater to everyone or offer multiple meat options so we can all find something we like. You're hosting a birthday party, OP, not running a diner. It's one meal - no one is going to starve if they don't have meat once in a while.
Did you see the recent issue of Food Network magazine? The had 50 different hot dog toppings. Some of them sounded, and looked, really good! (Sorry if this was mentioned but after reading the first page of replies I decided to skip the rest and just post my own) Definitely not just a kid's food. 


I eat Wunderbar Baloney ($1.69/lb...imagine what's in that!!!!!!!
, maybe some baked beans, cake or cupcakes and be done. If people offer to bring something, tell them to bring an appetizer. Toppings bar could be all the stuff you mentioned and maybe add some broccoli (for the broccoli & cheese potatoe) and sour cream.

