I don't think they go east of the Rockies, but the best fast food hamburger place in the West is In 'n Out. My fiance heard that you could get their burgers as lettuce wraps, but he didn't know what it was called. (to those not in the know, In 'n Out has a lot of unofficial, 'off-the-menu' items. My favorite is "animal-style", which is with onions grilled in mustard. ) So I went today and ordered a cheeseburger lettuce wrap, animal-style. Found out it's called a cheeseburger-animal / PROTEIN style. It was a HUGE mess, but so incredibly delicious, and totally "safe" (well, except maybe a couple of pickle chips)! (next time, knife and fork and order a double, because it was a little hard to find the patty in amongst all the lettuce, pickles, sauce, and onions.)

They asked if I wanted fries, and I laughed and said "no, that would kind of defeat the purpose."

Anyhow, everyone ought to check with their favorite burger place and see if you can get them lettuce-wrapped, instead of a bun.

Could just be us nutty, health-conscious Californians though.