There is a place next to my work called Mooyahs
OMG is there burgers good. It's kinda like 5 guys in where you pay for a burger and then the majority of the toppings you can pick are free, but you fill out a card with all the options.
There is something slightly sweet about it, the regular burger is a double, and it can be a got damn mess at times, but it's so freaking good. Most consistently good "fast food" burger. Unfortunately, the one next to my work is the only one in (Northern?) California and the rest are all in Texas.
So if you are in Texas and see one of these spots, stop and try it out.
Their fries are pretty good too, if you salt them a little.