ooh, I LOVE a good turkey burger (and few things are as BAD as a bad turkey burger - so hooray for this thread!)
I agree with rachel2025's DMK recommendation - I had the green chili cheeseburger as a turkey burger and it was outstanding. The meat was spiced a bit like breakfast sausage - lots of black pepper, a touch of sage and ginger. very juicy and moist. not a very big burger, but that is not something that bothers me.
I also love the turkey burger at Hamburger Mary's in Andersonville. I usually get the Buffy as a turkey burger. Swiss cheese, garlic aioli and it's cooked with some kind of red wine reduction. HIGHLY recommended! This one is a larger burger, but they still manage to keep it juicy.
Hamburger Mary's
5400 N Clark St, Chicago, Illinois
(773) 784-6969 · hamburgermarys.com