I also made these pretzel rolls which were great buns, but I'm not sure if they were worth the trouble. I just don't think mine turned out right, so I probably won't post the recipe, but feel free to follow the link if you would like!
Green Chili Burgers w/ Caramelized Onions, Pepper jack & Avocado
1 pound ground beef
1/2 packet onion soup mix
4 slices pepper jack cheese
4 buns of choice
1 7 oz can diced green chilis
1 or 2 onions (I used both white & red)
2 tablespoons butter
1 tablespoon sugar
Preheat grill. Slice onions and cook them over medium low heat with butter & sugar until caramelized (usually about 20 minutes.) Mix onion soup mix into ground beef and form into 4 patties. Grill burgers until medium. A few minutes before burgers are done top with cheese so it has time to melt. At this point I also place buns cut side down on the grill to toast them a bit.
Once burgers are done remove from grill and place on buns. Top with green chilis & onions. Cut avocado in half and get rid of the pit. Carefully slice each half long ways then spoon out to get slices. Spread mayo on top half of bun and layer with avocado slices. Serve!