UPDATED 6 p.m.: Atlanta's WAGA-TV has video of Mitt's Varsity trip.

UPDATED 11:55 p.m.:
Now, courtesy of Georgians For Mitt, video of Mr. Romney's speech:

PREVIOUSLY ...
Mitt Romney's presidential campaign will be seeking the junk-food junkie vote Wednesday in Atlanta, when he holds a lunchtime campaign event at Atlanta's Varsity -- the world's largest drive-in restaurant.

The famous North Avenue establishment is adjacent to the campus of Georgia Tech and is legendary for its curbside service, TV dining rooms and the slogan "what'll ya have?" -- barked loudly from behind the stainless-steel counter by the clerks who serve as many as 30,000 customers on days when Tech's Yellow Jackets play home football games at nearby Grant Field:

Two miles of hot dogs, a ton of onions, 2500 pounds of potatoes, 5000 fried pies and 300 gallons of chili are made from scratch daily.

Being an Atlanta native myself, I offer this non-partisan advice to Team Romney:

1. Study the menu, and memorize your order before you get to the counter. When the man says, "What'll ya have?" you don't want to stammer and stutter. They've got to serve a lot of lunch in a hurry, and you don't want to hold up the line.

2. Have your cash ready. Again, it's rude to hold up the line, and they don't take credit cards.

3. Personally, my menu recommendations are the chili cheeseburger, onion rings, fried peach pie and an F.O. -- that's Varsity shorthand for Frosted Orange. An F.O. is kind of like an orange milkshake, and to my knowledge, is served nowhere else in the world.

4. Caps. Don't forget to ask for your very own red paper cap -- just like the ones worn by Varsity employees -- to take home as a souvenir.

A meal at the Varsity is an unforgettable experience. Trust me -- the heartburn alone will keep the memory alive for at least 24 to 36 hours.

-- Robert Stacy McCain, assistant national editor, The Washington Times

UPDATE 12:05 p.m.: Ruth Malhotra, a Georgia Tech College Republican volunteering at the event, reports a "packed crowd" at the Varsity awaiting the arrival of Mr. Romney. Ruth promises to update us later with further details. -- RSM

UPDATE 12:30 p.m.: No word yet on Mr. Romney's menu selections, but the Atlanta Journal-Constitution's Jim Galloway notices that the governor leads all other 2008 presidential contenders (of both parties) in Georgia cash, with $756,661 so far. So, obviously, he's getting his share of greens to go with that greasy Varsity food. -- RSM

UPDATE 3 p.m.: Ruth reports that, despite the handicap of being a Yankee from Massachusetts, Mr. Romney demonstrated fluency in Varsity lingo, joking about a "naked dog," and even making a witticism about how nice it was to be in a place where "PC" doesn't stand for political correctness (order a "PC" at the Varsity and you'll get "plain chocolate," i.e., chocolate milk).

Alas, the governor didn't actually get to eat. "Close to 500 people" including "a ton of media" turned out for the event, Ruth reports, and "the crowd was so big, he never did make it to the counter." He sat next to campaign volunteer Lisa Bilz at the meet-and-greet, and gave "about a 15 or 20 minute speech," Mrs. Bilz said. Mr. Romney didn't stay long in Atlanta, immediately returning to Peachtree-DeKalb Airport to fly on to Florida. We'll update again if more details become available. -- RSM

UPDATE 3:45 p.m.: The AJC's Galloway reports that Romney talked about ... politics?

On the issue of health insurance, he condemned Democrats for wanting to increase government involvement, but his comment also appeared directed at the current administration: "I don't want the guys who managed the [Hurricane] Katrina clean-up running my health care system."

Romney also kept up his running war with Giuliani on immigration, though he didn't mention his Republican rival by name.

For the last week, Romney has pointed to a New York City policy adopted by Mayor Ed Koch in 1989 but extended by Giuliani during his terms as mayor, in which city workers did not provide information about illegal immigrants they came in contact with federal authorities.

"Let's end this sanctuary city thing," Romney told the crowd. The Giuliani campaign has pointed out that three Massachusetts cities have similar policies -- and that Romney has expressed no objections about them.

At the Georgia all-politics blog Peach Pundit, commenter Craig White was at the Varsity and reports that Mr. Romney drew a crowd big enough to constitute a fire code violation:

I walked in the door (farthest from the counters/closest to the lot) and that's just about as far as I got. The large room off of the main corridor was jam packed, whatever maximum capacity was, multiply it by 2. ...

Total in attendance, I'd say right at or over 500. I have never, never seen the Varsity so full. I've been during the Olympics and during the Braves 1995 [National League playoffs]. It was surprising.

Final non-partisan advice to presidential campaign staffs everywhere: If your candidate goes to the Varsity, he or she should (a) avoid talking politics, (b) talk about the Braves' bullpen instead, and (c) be sure to try the onion rings and F.O.

Trust me on this. -- RSM