Slopper

A slopper is basically a hamburger or a cheeseburger with a grilled bun, served drenched in red or green chili. It is sometimes topped with french fries, avocados, or onions. It is believed that slopper was invented either at Gray's Coors Tavern or the Star Bar in Pueblo, Colorado in the 1950s or the 1970s, depending on who you ask.

The burgers can be served regularly (with bread on top and on the bottom) or open-faced, and they are typically consumed with a knife and a fork.