When I was in Austin recently I had a late night breakfast at the original Kirby Lane Cafe. I hadn't been back to Kirby Lane in almost ten years. It's still there and the food is still very good. I had an old favorite, the Chicken Verde Omlette. A nice omlette with chicken (white meat only, unfortuantely for me) with a verde sauce. Lots of tomatillo and cilantro in the sauce. Served with very good home fries.
Only down side is the place was nearly deserted. Just a few diners. Back in my Austin days, it would have been mobbed at 11:30 p.m. on a weeknight.