birthday ideas

I want to have about 10-15 people over for my birthday. The challenge is, they all have diverse eating preferences. Some are vegetarians, some that eat very healthy and some like myself who love the bacon!

I usually do a "make your own" party like pizza or waffles etc. where I put out a buffet of toppings and they can pick what they like but I'm starting to run out of ideas! The other kicker is that I don't want to spend huge amounts of money.

The only idea I've come up with so far is a big pot of vegetarian chili and I can make some cornbread some homemade tortilla chips, have chorizo and other yummy toppings.

Any other ideas?