A friend turned me on to this one. Not for those that get nose-bleeds easily - but the Tollway can deliver you to Prosper, TX swiftly and with style.
Look - it's all wind-swept and stuff. Koster's Famous New York Delicatessen is on 380, about three miles East of the Tollway. They have a website - kind of (navigate with the "Go to..." box at the upper right.)
I am here for the "Kosters Famous Kobe Burger - Prime Kobe Beef, Leaf Lettuce, Tomato, Red Onion, Choice of Cheese."
The bun is from La Spiga Bakery in Addison. The meat was delicious - really good. It was fun to trek out there and the burger was worthy of the trip.