Lucas Flórez
Google
I was there last April for a 5-day trip and I eventually went there twice, so you can already imagine that this place is special.
These cheeseburgers are one of the best I've ever had; perfectly cooked, juicy and incredibly tasty. They have some special sauce which, to be honest, I don't really know what it is, but tastes delicious! They also make really good chips.
Be warned, though, especially depending on the hour/season, as this place (and Camden in general) tends to get really crowded for lunchtime!