I had read in Roadfood a mention of a style of hamburgers in New Mexico that included chiles in the patties. But that was about all the data I had to work from; I didn't have a recipe. Using that as my inspiration, I came up with this:
Ralph's Vaguely Southwestern Burgers
3 lb. ground beef
2 cans chopped green chiles
1 package taco seasoning
1 tablespoon liquid smoke
Mix everything together. (Use your hands.) Shape into about 12 patties. Grill the patties in the normal hamburger-grilling way.
(I topped them with cheddar and colby-jack cheese; pepper-jack cheese seems like it would also have been a good choice.
The burgers came out pretty darn tasty. This isn't an ultrafabulous recipe, but it's worth remembering.