Apparently a lot of people in Portland, Oregon love foot carts and lunch wagons, to the point where they're calling it "food cart culture". I was looking at an article somewhere, which lead me to another, which lead me to Food Carts Portland.

There's a cart called Brunch Box and they have something called an OMG! Burger, a/k/a The Redonkadonk:

I couldn't find a photo of it (which may or may not be fortunate), but if you want a "basic" version of this without the egg, ham, bacon, and Spam, here you go:

Forget your health, this is an instant heart attack party. I have not tried something like this yet, but if you're an avid walker or bike rider, you could burn this off in a few hours. Maybe.