In & Out !!!!!!
ask for it " Animal Style " ( not found on menu ) you won't be disappointed
they also have whats called a 4x4 ( four by four ) thats also NOT on the menu..
truly the best burger I have ever had ...
second best burger -
Archibalds on K street in Downtown DC ..
Yeah, it's a strip club, but would eat lunch there regularly
Don
EDIT: I see other have already posted this
I almost forgot Whitecastle/Crystal if you need to just eat eat eat and eat some more. The pickles stick to the windows quite nice as well

. My EX used to make me run out and get Crystal burgers in florida ( after the evenings activities

)