Is it at a fancy restaurant?
Fast food?
Local dive?
Something you make at home?
Right now my favorite burger is the Baja Burger at Burgers Bait and Beer, a small stand on the waterfront in downtown San Diego. We ate there last Friday before a show at the Rady Shell, a new (maybe three years) old venue that holds several thousand people, in various configurations, and has state of the art sound and lighting systems.
This picture actually was pulled from Yelp because I didn't get a really good shot. The burger incorporates some smoked chorizo in a half pound of ground beef and comes with lettuce, tomato, onions, avocado, cotija cheese and some spicy mayo mixture. The thing is great, especially with a Lagunitas IPA on draft.
Not only is the food great, but location counts as well. Here's our table, looking out past the fishing pier at Coronado Island and North Island NAS, with Point Loma in the far background.
My wife had the "All American" burger and I had the Baja burger. They have maybe half a dozen burger iterations, as well as several very large hot dogs with various toppings, some tacos, ceviche and who knows what else.
This is where it sits, in relation to the Rady Shell (just outside the back gate), the marina and the convention center. Petco Park is on the other side of the convention center and a few hundred yards down the road.
It's basically an open air street kitchen and a permanent kiosk where they sell beer, bait and some other stuff. There are maybe ten tables inside the fence, and two that are right on the water.
We go to maybe half a dozen shows at the shell per year. It's a 50 to 90 minute drive from here, depending on time and day). We discovered this place last year when looking for a place to eat before a show. You can get decent food inside but it's mostly made in advance stuff dressed up to look fancy, and costs an arm and a leg,
BB&B caters mostly to the walk-up and fishing crowd and closes at 5:30 pm. Most shows start at 7:00 pm, so we just time our arrival to get there about 5:00 and have plenty of time to relax with some food and brews before the show. It's almost never crowded, at least when we get there at 5:00, because nobody in the concert crowd has bothered to venture past the front gate, which is by the traffic circle between the venue and the convention center. Most of the parking is at the convention center. I've seen a lot of road crew and venue staff eating there, though.
So, try this place if you're ever in DTSD but, please, don't spread the word.
