So, I had a thought...
...Hmm....
Hummus used as a dip for pork rinds...
Low-ish carb (not atkins low, but low), ultra low glycemic index and load, ultra high protein, EXTREME flavor...
...and given the cultural background of hummus, vaguely sacrilicious.
What's not to like?
Maybe crumble some bacon on the top? Some feta?
Oh yeah... and hot sauce...
That's the stuff man
UPDATE: Just tried it... OH MY GOD THAT IS GOOD
Oh and as a second tip...
For my fellow foodies who like neither mayonnaise nor guacamole (and in general I don't care for sour cream either), there IS a wonderful substitute available for you.
Try a schmear of hummus.
I find it particularly complements grilled chicken... especially with some bacon. Hummus will substitute for both mayonnaise, AND a slice of cheese, in your grilled chicken sandwich.
I've got to try that with my next bacon cheeseburger as well...